xref: /petsc/include/petsclog.h (revision eee954682a6abb1a7ac141dbd0723ecb4ff6b1e5)
1 /*
2     Defines profile/logging in PETSc.
3 */
4 
5 #if !defined(PETSCLOG_H)
6 #define PETSCLOG_H
7 #include <petscsys.h>
8 #include <petsctime.h>
9 
10 /* General logging of information; different from event logging */
11 PETSC_EXTERN PetscErrorCode PetscInfo_Private(const char[],PetscObject,const char[],...) PETSC_ATTRIBUTE_FORMAT(3,4);
12 #if defined(PETSC_USE_INFO)
13 #define PetscInfo(A,S)                             PetscInfo_Private(PETSC_FUNCTION_NAME,((PetscObject)A),S)
14 #define PetscInfo1(A,S,a1)                         PetscInfo_Private(PETSC_FUNCTION_NAME,((PetscObject)A),S,a1)
15 #define PetscInfo2(A,S,a1,a2)                      PetscInfo_Private(PETSC_FUNCTION_NAME,((PetscObject)A),S,a1,a2)
16 #define PetscInfo3(A,S,a1,a2,a3)                   PetscInfo_Private(PETSC_FUNCTION_NAME,((PetscObject)A),S,a1,a2,a3)
17 #define PetscInfo4(A,S,a1,a2,a3,a4)                PetscInfo_Private(PETSC_FUNCTION_NAME,((PetscObject)A),S,a1,a2,a3,a4)
18 #define PetscInfo5(A,S,a1,a2,a3,a4,a5)             PetscInfo_Private(PETSC_FUNCTION_NAME,((PetscObject)A),S,a1,a2,a3,a4,a5)
19 #define PetscInfo6(A,S,a1,a2,a3,a4,a5,a6)          PetscInfo_Private(PETSC_FUNCTION_NAME,((PetscObject)A),S,a1,a2,a3,a4,a5,a6)
20 #define PetscInfo7(A,S,a1,a2,a3,a4,a5,a6,a7)       PetscInfo_Private(PETSC_FUNCTION_NAME,((PetscObject)A),S,a1,a2,a3,a4,a5,a6,a7)
21 #define PetscInfo8(A,S,a1,a2,a3,a4,a5,a6,a7,a8)    PetscInfo_Private(PETSC_FUNCTION_NAME,((PetscObject)A),S,a1,a2,a3,a4,a5,a6,a7,a8)
22 #define PetscInfo9(A,S,a1,a2,a3,a4,a5,a6,a7,a8,a9) PetscInfo_Private(PETSC_FUNCTION_NAME,((PetscObject)A),S,a1,a2,a3,a4,a5,a6,a7,a8,a9)
23 #else
24 #define PetscInfo(A,S)                             0
25 #define PetscInfo1(A,S,a1)                         0
26 #define PetscInfo2(A,S,a1,a2)                      0
27 #define PetscInfo3(A,S,a1,a2,a3)                   0
28 #define PetscInfo4(A,S,a1,a2,a3,a4)                0
29 #define PetscInfo5(A,S,a1,a2,a3,a4,a5)             0
30 #define PetscInfo6(A,S,a1,a2,a3,a4,a5,a6)          0
31 #define PetscInfo7(A,S,a1,a2,a3,a4,a5,a6,a7)       0
32 #define PetscInfo8(A,S,a1,a2,a3,a4,a5,a6,a7,a8)    0
33 #define PetscInfo9(A,S,a1,a2,a3,a4,a5,a6,a7,a8,a9) 0
34 #endif
35 
36 /*E
37     PetscInfoCommFlag - Describes the method by which to filter PetscInfo() by communicator size
38 
39     Used as an input for PetscInfoSetFilterCommSelf()
40 
41 $   PETSC_INFO_COMM_ALL - Default uninitialized value. PetscInfo() will not filter based on communicator size (i.e. will
42 print for all communicators)
43 $   PETSC_INFO_COMM_NO_SELF - PetscInfo() will NOT print for communicators with size = 1 (i.e. *_COMM_SELF)
44 $   PETSC_INFO_COMM_ONLY_SELF - PetscInfo will ONLY print for communicators with size = 1
45 
46     Level: intermediate
47 
48 .seealso: PetscInfo(), PetscInfoSetFromOptions(), PetscInfoSetFilterCommSelf()
49 E*/
50 typedef enum {
51   PETSC_INFO_COMM_ALL = -1,
52   PETSC_INFO_COMM_NO_SELF = 0,
53   PETSC_INFO_COMM_ONLY_SELF = 1
54 } PetscInfoCommFlag;
55 
56 PETSC_EXTERN const char * const PetscInfoCommFlags[];
57 PETSC_EXTERN PetscErrorCode PetscInfoDeactivateClass(PetscClassId);
58 PETSC_EXTERN PetscErrorCode PetscInfoActivateClass(PetscClassId);
59 PETSC_EXTERN PetscErrorCode PetscInfoEnabled(PetscClassId, PetscBool *);
60 PETSC_EXTERN PetscErrorCode PetscInfoAllow(PetscBool);
61 PETSC_EXTERN PetscErrorCode PetscInfoSetFile(const char[],const char[]);
62 PETSC_EXTERN PetscErrorCode PetscInfoGetFile(char **,FILE **);
63 PETSC_EXTERN PetscErrorCode PetscInfoSetClasses(PetscBool,PetscInt,const char *const *);
64 PETSC_EXTERN PetscErrorCode PetscInfoGetClass(const char *, PetscBool *);
65 PETSC_EXTERN PetscErrorCode PetscInfoGetInfo(PetscBool *,PetscBool *,PetscBool *,PetscBool *,PetscInfoCommFlag *);
66 PETSC_EXTERN PetscErrorCode PetscInfoProcessClass(const char[],PetscInt,PetscClassId[]);
67 PETSC_EXTERN PetscErrorCode PetscInfoSetFilterCommSelf(PetscInfoCommFlag);
68 PETSC_EXTERN PetscErrorCode PetscInfoSetFromOptions(PetscOptions);
69 PETSC_EXTERN PetscErrorCode PetscInfoDestroy(void);
70 PETSC_EXTERN PetscBool      PetscLogPrintInfo;  /* if true, indicates PetscInfo() is turned on */
71 
72 /*MC
73     PetscLogEvent - id used to identify PETSc or user events which timed portions (blocks of executable)
74      code.
75 
76     Level: intermediate
77 
78 .seealso: PetscLogEventRegister(), PetscLogEventBegin(), PetscLogEventEnd(), PetscLogStage
79 M*/
80 typedef int PetscLogEvent;
81 
82 /*MC
83     PetscLogStage - id used to identify user stages (phases, sections) of runs - for logging
84 
85     Level: intermediate
86 
87 .seealso: PetscLogStageRegister(), PetscLogStagePush(), PetscLogStagePop(), PetscLogEvent
88 M*/
89 typedef int PetscLogStage;
90 
91 #define PETSC_EVENT  1311311
92 PETSC_EXTERN PetscLogEvent PETSC_LARGEST_EVENT;
93 
94 /* Global flop counter */
95 PETSC_EXTERN PetscLogDouble petsc_TotalFlops;
96 PETSC_EXTERN PetscLogDouble petsc_tmp_flops;
97 
98 /* We must make the following structures available to access the event
99      activation flags in the PetscLogEventBegin/End() macros. These are not part of the PETSc public
100      API and are not intended to be used by other parts of PETSc or by users.
101 
102      The code that manipulates these structures is in src/sys/logging/utils.
103 */
104 typedef struct _n_PetscIntStack *PetscIntStack;
105 
106 /* -----------------------------------------------------------------------------------------------------*/
107 /*
108     PetscClassRegInfo, PetscClassPerfInfo - Each class has two data structures associated with it. The first has
109        static information about it, the second collects statistics on how many objects of the class are created,
110        how much memory they use, etc.
111 
112     PetscClassRegLog, PetscClassPerfLog - arrays of the PetscClassRegInfo and PetscClassPerfInfo for all classes.
113 */
114 typedef struct  {
115   char           *name;   /* The class name */
116   PetscClassId   classid; /* The integer identifying this class */
117 } PetscClassRegInfo;
118 
119 typedef struct {
120   PetscClassId   id;           /* The integer identifying this class */
121   int            creations;    /* The number of objects of this class created */
122   int            destructions; /* The number of objects of this class destroyed */
123   PetscLogDouble mem;          /* The total memory allocated by objects of this class */
124   PetscLogDouble descMem;      /* The total memory allocated by descendents of these objects */
125 } PetscClassPerfInfo;
126 
127 typedef struct _n_PetscClassRegLog *PetscClassRegLog;
128 struct _n_PetscClassRegLog {
129   int               numClasses; /* The number of classes registered */
130   int               maxClasses; /* The maximum number of classes */
131   PetscClassRegInfo *classInfo; /* The structure for class information (classids are monotonicly increasing) */
132 };
133 
134 typedef struct _n_PetscClassPerfLog *PetscClassPerfLog;
135 struct _n_PetscClassPerfLog {
136   int                numClasses; /* The number of logging classes */
137   int                maxClasses; /* The maximum number of classes */
138   PetscClassPerfInfo *classInfo; /* The structure for class information (classids are monotonicly increasing) */
139 };
140 /* -----------------------------------------------------------------------------------------------------*/
141 /*
142     PetscEventRegInfo, PetscEventPerfInfo - Each event has two data structures associated with it. The first has
143        static information about it, the second collects statistics on how many times the event is used, how
144        much time it takes, etc.
145 
146     PetscEventRegLog, PetscEventPerfLog - an array of all PetscEventRegInfo and PetscEventPerfInfo for all events. There is one
147       of these for each stage.
148 
149 */
150 typedef struct {
151   char         *name;         /* The name of this event */
152   PetscClassId classid;       /* The class the event is associated with */
153   PetscBool    collective;    /* Flag this event as collective */
154 #if defined (PETSC_HAVE_MPE)
155   int          mpe_id_begin;  /* MPE IDs that define the event */
156   int          mpe_id_end;
157 #endif
158 } PetscEventRegInfo;
159 
160 typedef struct {
161   int            id;            /* The integer identifying this event */
162   PetscBool      active;        /* The flag to activate logging */
163   PetscBool      visible;       /* The flag to print info in summary */
164   int            depth;         /* The nesting depth of the event call */
165   int            count;         /* The number of times this event was executed */
166   PetscLogDouble flops, flops2, flopsTmp; /* The flops and flops^2 used in this event */
167   PetscLogDouble time, time2, timeTmp;    /* The time and time^2 taken for this event */
168   PetscLogDouble syncTime;                /* The synchronization barrier time */
169   PetscLogDouble dof[8];        /* The number of degrees of freedom associated with this event */
170   PetscLogDouble errors[8];     /* The errors (user-defined) associated with this event */
171   PetscLogDouble numMessages;   /* The number of messages in this event */
172   PetscLogDouble messageLength; /* The total message lengths in this event */
173   PetscLogDouble numReductions; /* The number of reductions in this event */
174   PetscLogDouble memIncrease;   /* How much the resident memory has increased in this event */
175   PetscLogDouble mallocIncrease;/* How much the maximum malloced space has increased in this event */
176   PetscLogDouble mallocSpace;   /* How much the space was malloced and kept during this event */
177   PetscLogDouble mallocIncreaseEvent;  /* Maximum of the high water mark with in event minus memory available at the end of the event */
178   #if defined(PETSC_HAVE_DEVICE)
179   PetscLogDouble CpuToGpuCount; /* The total number of CPU to GPU copies */
180   PetscLogDouble GpuToCpuCount; /* The total number of GPU to CPU copies */
181   PetscLogDouble CpuToGpuSize;  /* The total size of CPU to GPU copies */
182   PetscLogDouble GpuToCpuSize;  /* The total size of GPU to CPU copies */
183   PetscLogDouble GpuFlops;      /* The flops done on a GPU in this event */
184   PetscLogDouble GpuTime;       /* The time spent on a GPU in this event */
185   #endif
186 } PetscEventPerfInfo;
187 
188 typedef struct _n_PetscEventRegLog *PetscEventRegLog;
189 struct _n_PetscEventRegLog {
190   int               numEvents;  /* The number of registered events */
191   int               maxEvents;  /* The maximum number of events */
192   PetscEventRegInfo *eventInfo; /* The registration information for each event */
193 };
194 
195 typedef struct _n_PetscEventPerfLog *PetscEventPerfLog;
196 struct _n_PetscEventPerfLog {
197   int                numEvents;  /* The number of logging events */
198   int                maxEvents;  /* The maximum number of events */
199   PetscEventPerfInfo *eventInfo; /* The performance information for each event */
200 };
201 /* ------------------------------------------------------------------------------------------------------------*/
202 /*
203    PetscStageInfo - Contains all the information about a particular stage.
204 
205    PetscStageLog - An array of PetscStageInfo for each registered stage. There is a single one of these in the code.
206 */
207 typedef struct _PetscStageInfo {
208   char               *name;     /* The stage name */
209   PetscBool          used;      /* The stage was pushed on this processor */
210   PetscEventPerfInfo perfInfo;  /* The stage performance information */
211   PetscEventPerfLog  eventLog;  /* The event information for this stage */
212   PetscClassPerfLog  classLog;  /* The class information for this stage */
213 } PetscStageInfo;
214 
215 typedef struct _n_PetscStageLog *PetscStageLog;
216 struct _n_PetscStageLog {
217   int              numStages;   /* The number of registered stages */
218   int              maxStages;   /* The maximum number of stages */
219   PetscIntStack    stack;       /* The stack for active stages */
220   int              curStage;    /* The current stage (only used in macros so we don't call PetscIntStackTop) */
221   PetscStageInfo   *stageInfo;  /* The information for each stage */
222   PetscEventRegLog eventLog;    /* The registered events */
223   PetscClassRegLog classLog;    /* The registered classes */
224 };
225 /* -----------------------------------------------------------------------------------------------------*/
226 
227 PETSC_EXTERN PetscErrorCode PetscLogObjectParent(PetscObject,PetscObject);
228 PETSC_EXTERN PetscErrorCode PetscLogObjectMemory(PetscObject,PetscLogDouble);
229 
230 #if defined(PETSC_USE_LOG)  /* --- Logging is turned on --------------------------------*/
231 PETSC_EXTERN PetscStageLog petsc_stageLog;
232 PETSC_EXTERN PetscErrorCode PetscLogGetStageLog(PetscStageLog*);
233 PETSC_EXTERN PetscErrorCode PetscStageLogGetCurrent(PetscStageLog,int*);
234 PETSC_EXTERN PetscErrorCode PetscStageLogGetEventPerfLog(PetscStageLog,int,PetscEventPerfLog*);
235 
236 /*
237    Flop counting:  We count each arithmetic operation (e.g., addition, multiplication) separately.
238 
239    For the complex numbers version, note that
240        1 complex addition = 2 flops
241        1 complex multiplication = 6 flops,
242    where we define 1 flop as that for a double precision scalar.  We roughly approximate
243    flop counting for complex numbers by multiplying the total flops by 4; this corresponds
244    to the assumption that we're counting mostly additions and multiplications -- and
245    roughly the same number of each.  More accurate counting could be done by distinguishing
246    among the various arithmetic operations.
247  */
248 
249 #if defined(PETSC_USE_COMPLEX)
250 #define PETSC_FLOPS_PER_OP 4.0
251 #else
252 #define PETSC_FLOPS_PER_OP 1.0
253 #endif
254 
255 /*@C
256        PetscLogFlops - Log how many flops are performed in a calculation
257 
258    Input Parameter:
259 .   flops - the number of flops
260 
261    Notes:
262      To limit the chance of integer overflow when multiplying by a constant, represent the constant as a double,
263      not an integer. Use PetscLogFlops(4.0*n) not PetscLogFlops(4*n)
264 
265    Level: intermediate
266 
267 .seealso: PetscLogView(), PetscLogGpuFlops()
268 @*/
269 
270 PETSC_STATIC_INLINE PetscErrorCode PetscLogFlops(PetscLogDouble n)
271 {
272   PetscFunctionBegin;
273 #if defined(PETSC_USE_DEBUG)
274   if (n < 0) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_OUTOFRANGE,"Cannot log negative flops");
275 #endif
276   petsc_TotalFlops += PETSC_FLOPS_PER_OP*n;
277   PetscFunctionReturn(0);
278 }
279 
280 PETSC_EXTERN PetscErrorCode PetscGetFlops(PetscLogDouble *);
281 
282 #if defined (PETSC_HAVE_MPE)
283 PETSC_EXTERN PetscErrorCode PetscLogMPEBegin(void);
284 PETSC_EXTERN PetscErrorCode PetscLogMPEDump(const char[]);
285 #endif
286 
287 PETSC_EXTERN PetscErrorCode (*PetscLogPLB)(PetscLogEvent,int,PetscObject,PetscObject,PetscObject,PetscObject);
288 PETSC_EXTERN PetscErrorCode (*PetscLogPLE)(PetscLogEvent,int,PetscObject,PetscObject,PetscObject,PetscObject);
289 PETSC_EXTERN PetscErrorCode (*PetscLogPHC)(PetscObject);
290 PETSC_EXTERN PetscErrorCode (*PetscLogPHD)(PetscObject);
291 
292 #define PetscLogObjectParents(p,n,d)  0;do{int _i; for (_i=0; _i<(n); _i++) {ierr = PetscLogObjectParent((PetscObject)(p),(PetscObject)(d)[_i]);CHKERRQ(ierr);}}while (0)
293 #define PetscLogObjectCreate(h)      ((PetscLogPHC) ? (*PetscLogPHC)((PetscObject)(h)) : 0)
294 #define PetscLogObjectDestroy(h)     ((PetscLogPHD) ? (*PetscLogPHD)((PetscObject)(h)) : 0)
295 PETSC_EXTERN PetscErrorCode PetscLogObjectState(PetscObject, const char[], ...) PETSC_ATTRIBUTE_FORMAT(2,3);
296 
297 /* Initialization functions */
298 PETSC_EXTERN PetscErrorCode PetscLogDefaultBegin(void);
299 PETSC_EXTERN PetscErrorCode PetscLogAllBegin(void);
300 PETSC_EXTERN PetscErrorCode PetscLogNestedBegin(void);
301 PETSC_EXTERN PetscErrorCode PetscLogTraceBegin(FILE *);
302 PETSC_EXTERN PetscErrorCode PetscLogActions(PetscBool);
303 PETSC_EXTERN PetscErrorCode PetscLogObjects(PetscBool);
304 PETSC_EXTERN PetscErrorCode PetscLogSetThreshold(PetscLogDouble,PetscLogDouble*);
305 PETSC_EXTERN PetscErrorCode PetscLogSet(PetscErrorCode (*)(int, int, PetscObject, PetscObject, PetscObject, PetscObject),
306                                         PetscErrorCode (*)(int, int, PetscObject, PetscObject, PetscObject, PetscObject));
307 
308 /* Output functions */
309 PETSC_EXTERN PetscErrorCode PetscLogView(PetscViewer);
310 PETSC_EXTERN PetscErrorCode PetscLogViewFromOptions(void);
311 PETSC_EXTERN PetscErrorCode PetscLogDump(const char[]);
312 
313 /* Stage functions */
314 PETSC_EXTERN PetscErrorCode PetscLogStageRegister(const char[],PetscLogStage*);
315 PETSC_EXTERN PetscErrorCode PetscLogStagePush(PetscLogStage);
316 PETSC_EXTERN PetscErrorCode PetscLogStagePop(void);
317 PETSC_EXTERN PetscErrorCode PetscLogStageSetActive(PetscLogStage,PetscBool);
318 PETSC_EXTERN PetscErrorCode PetscLogStageGetActive(PetscLogStage,PetscBool*);
319 PETSC_EXTERN PetscErrorCode PetscLogStageSetVisible(PetscLogStage,PetscBool);
320 PETSC_EXTERN PetscErrorCode PetscLogStageGetVisible(PetscLogStage,PetscBool*);
321 PETSC_EXTERN PetscErrorCode PetscLogStageGetId(const char[],PetscLogStage*);
322 
323 /* Event functions */
324 PETSC_EXTERN PetscErrorCode PetscLogEventRegister(const char[],PetscClassId,PetscLogEvent*);
325 PETSC_EXTERN PetscErrorCode PetscLogEventSetCollective(PetscLogEvent,PetscBool);
326 PETSC_EXTERN PetscErrorCode PetscLogEventIncludeClass(PetscClassId);
327 PETSC_EXTERN PetscErrorCode PetscLogEventExcludeClass(PetscClassId);
328 PETSC_EXTERN PetscErrorCode PetscLogEventActivate(PetscLogEvent);
329 PETSC_EXTERN PetscErrorCode PetscLogEventDeactivate(PetscLogEvent);
330 PETSC_EXTERN PetscErrorCode PetscLogEventDeactivatePush(PetscLogEvent);
331 PETSC_EXTERN PetscErrorCode PetscLogEventDeactivatePop(PetscLogEvent);
332 PETSC_EXTERN PetscErrorCode PetscLogEventSetActiveAll(PetscLogEvent,PetscBool);
333 PETSC_EXTERN PetscErrorCode PetscLogEventActivateClass(PetscClassId);
334 PETSC_EXTERN PetscErrorCode PetscLogEventDeactivateClass(PetscClassId);
335 PETSC_EXTERN PetscErrorCode PetscLogEventGetId(const char[],PetscLogEvent*);
336 PETSC_EXTERN PetscErrorCode PetscLogEventGetPerfInfo(int,PetscLogEvent,PetscEventPerfInfo*);
337 PETSC_EXTERN PetscErrorCode PetscLogEventSetDof(PetscLogEvent, PetscInt, PetscLogDouble);
338 PETSC_EXTERN PetscErrorCode PetscLogEventSetError(PetscLogEvent, PetscInt, PetscLogDouble);
339 
340 /* Global counters */
341 PETSC_EXTERN PetscLogDouble petsc_irecv_ct;
342 PETSC_EXTERN PetscLogDouble petsc_isend_ct;
343 PETSC_EXTERN PetscLogDouble petsc_recv_ct;
344 PETSC_EXTERN PetscLogDouble petsc_send_ct;
345 PETSC_EXTERN PetscLogDouble petsc_irecv_len;
346 PETSC_EXTERN PetscLogDouble petsc_isend_len;
347 PETSC_EXTERN PetscLogDouble petsc_recv_len;
348 PETSC_EXTERN PetscLogDouble petsc_send_len;
349 PETSC_EXTERN PetscLogDouble petsc_allreduce_ct;
350 PETSC_EXTERN PetscLogDouble petsc_gather_ct;
351 PETSC_EXTERN PetscLogDouble petsc_scatter_ct;
352 PETSC_EXTERN PetscLogDouble petsc_wait_ct;
353 PETSC_EXTERN PetscLogDouble petsc_wait_any_ct;
354 PETSC_EXTERN PetscLogDouble petsc_wait_all_ct;
355 PETSC_EXTERN PetscLogDouble petsc_sum_of_waits_ct;
356 
357 PETSC_EXTERN PetscBool      PetscLogMemory;
358 
359 PETSC_EXTERN PetscBool PetscLogSyncOn;  /* true if logging synchronization is enabled */
360 PETSC_EXTERN PetscErrorCode PetscLogEventSynchronize(PetscLogEvent, MPI_Comm);
361 
362 #define PetscLogEventSync(e,comm) \
363   (((PetscLogPLB && petsc_stageLog->stageInfo[petsc_stageLog->curStage].perfInfo.active && petsc_stageLog->stageInfo[petsc_stageLog->curStage].eventLog->eventInfo[e].active) ? \
364     PetscLogEventSynchronize((e),(comm)) : 0))
365 
366 #define PetscLogEventBegin(e,o1,o2,o3,o4) \
367   (((PetscLogPLB && petsc_stageLog->stageInfo[petsc_stageLog->curStage].perfInfo.active && petsc_stageLog->stageInfo[petsc_stageLog->curStage].eventLog->eventInfo[e].active) ? \
368     (*PetscLogPLB)((e),0,(PetscObject)(o1),(PetscObject)(o2),(PetscObject)(o3),(PetscObject)(o4)) : 0))
369 
370 #define PetscLogEventEnd(e,o1,o2,o3,o4) \
371   (((PetscLogPLE && petsc_stageLog->stageInfo[petsc_stageLog->curStage].perfInfo.active && petsc_stageLog->stageInfo[petsc_stageLog->curStage].eventLog->eventInfo[e].active) ? \
372     (*PetscLogPLE)((e),0,(PetscObject)(o1),(PetscObject)(o2),(PetscObject)(o3),(PetscObject)(o4)) : 0))
373 
374 PETSC_EXTERN PetscErrorCode PetscLogEventGetFlops(PetscLogEvent,PetscLogDouble*);
375 PETSC_EXTERN PetscErrorCode PetscLogEventZeroFlops(PetscLogEvent);
376 
377 /*
378      These are used internally in the PETSc routines to keep a count of MPI messages and
379    their sizes.
380 
381      This does not work for MPI-Uni because our include/petsc/mpiuni/mpi.h file
382    uses macros to defined the MPI operations.
383 
384      It does not work correctly from HP-UX because it processes the
385    macros in a way that sometimes it double counts, hence
386    PETSC_HAVE_BROKEN_RECURSIVE_MACRO
387 
388      It does not work with Windows because winmpich lacks MPI_Type_size()
389 */
390 #if !defined(MPIUNI_H) && !defined(PETSC_HAVE_BROKEN_RECURSIVE_MACRO) && !defined (PETSC_HAVE_MPI_MISSING_TYPESIZE)
391 /*
392    Logging of MPI activities
393 */
394 PETSC_STATIC_INLINE PetscErrorCode PetscMPITypeSize(PetscInt count,MPI_Datatype type,PetscLogDouble *length)
395 {
396   PetscMPIInt    typesize;
397   PetscErrorCode ierr;
398   if (type == MPI_DATATYPE_NULL) return 0;
399   ierr     = MPI_Type_size(type,&typesize);CHKERRMPI(ierr);
400   *length += (PetscLogDouble) (count*typesize);
401   return 0;
402 }
403 
404 PETSC_STATIC_INLINE PetscErrorCode PetscMPITypeSizeComm(MPI_Comm comm,const PetscMPIInt *counts,MPI_Datatype type,PetscLogDouble *length)
405 {
406   PetscMPIInt    typesize,size,p;
407   PetscErrorCode ierr;
408 
409   if (type == MPI_DATATYPE_NULL) return 0;
410   ierr = MPI_Comm_size(comm,&size);CHKERRMPI(ierr);
411   ierr = MPI_Type_size(type,&typesize);CHKERRMPI(ierr);
412   for (p=0; p<size; ++p) {
413     *length += (PetscLogDouble) (counts[p]*typesize);
414   }
415   return 0;
416 }
417 
418 PETSC_STATIC_INLINE PetscErrorCode PetscMPITypeSizeCount(PetscInt n,const PetscMPIInt *counts,MPI_Datatype type,PetscLogDouble *length)
419 {
420   PetscMPIInt    typesize,p;
421   PetscErrorCode ierr;
422 
423   if (type == MPI_DATATYPE_NULL) return 0;
424   ierr = MPI_Type_size(type,&typesize);CHKERRMPI(ierr);
425   for (p=0; p<n; ++p) {
426     *length += (PetscLogDouble) (counts[p]*typesize);
427   }
428   return 0;
429 }
430 
431 /*
432     Returns 1 if the communicator is parallel else zero
433 */
434 PETSC_STATIC_INLINE int PetscMPIParallelComm(MPI_Comm comm)
435 {
436   PetscMPIInt size; MPI_Comm_size(comm,&size); return size > 1;
437 }
438 
439 #define MPI_Irecv(buf,count,datatype,source,tag,comm,request) \
440   ((petsc_irecv_ct++,0) || PetscMPITypeSize((count),(datatype),&(petsc_irecv_len)) || MPI_Irecv((buf),(count),(datatype),(source),(tag),(comm),(request)))
441 
442 #define MPI_Irecv_c(buf,count,datatype,source,tag,comm,request) \
443   ((petsc_irecv_ct++,0) || PetscMPITypeSize((count),(datatype),&(petsc_irecv_len)) || MPI_Irecv_c((buf),(count),(datatype),(source),(tag),(comm),(request)))
444 
445 #define MPI_Isend(buf,count,datatype,dest,tag,comm,request) \
446   ((petsc_isend_ct++,0) || PetscMPITypeSize((count),(datatype),&(petsc_isend_len)) || MPI_Isend((buf),(count),(datatype),(dest),(tag),(comm),(request)))
447 
448 #define MPI_Isend_c(buf,count,datatype,dest,tag,comm,request) \
449   ((petsc_isend_ct++,0) || PetscMPITypeSize((count),(datatype),&(petsc_isend_len)) || MPI_Isend_c((buf),(count),(datatype),(dest),(tag),(comm),(request)))
450 
451 #define MPI_Startall_irecv(count,datatype,number,requests) \
452   ((petsc_irecv_ct += (PetscLogDouble)(number),0) || PetscMPITypeSize((count),(datatype),&(petsc_irecv_len)) || ((number) && MPI_Startall((number),(requests))))
453 
454 #define MPI_Startall_isend(count,datatype,number,requests) \
455   ((petsc_isend_ct += (PetscLogDouble)(number),0) || PetscMPITypeSize((count),(datatype),&(petsc_isend_len)) || ((number) && MPI_Startall((number),(requests))))
456 
457 #define MPI_Start_isend(count,datatype,requests) \
458   ((petsc_isend_ct++,0) || PetscMPITypeSize((count),(datatype),(&petsc_isend_len)) || MPI_Start((requests)))
459 
460 #define MPI_Recv(buf,count,datatype,source,tag,comm,status) \
461   ((petsc_recv_ct++,0) || PetscMPITypeSize((count),(datatype),(&petsc_recv_len)) || MPI_Recv((buf),(count),(datatype),(source),(tag),(comm),(status)))
462 
463 #define MPI_Recv_c(buf,count,datatype,source,tag,comm,status) \
464   ((petsc_recv_ct++,0) || PetscMPITypeSize((count),(datatype),(&petsc_recv_len)) || MPI_Recv_c((buf),(count),(datatype),(source),(tag),(comm),(status)))
465 
466 #define MPI_Send(buf,count,datatype,dest,tag,comm) \
467   ((petsc_send_ct++,0) || PetscMPITypeSize((count),(datatype),(&petsc_send_len)) || MPI_Send((buf),(count),(datatype),(dest),(tag),(comm)))
468 
469 #define MPI_Send_c(buf,count,datatype,dest,tag,comm) \
470   ((petsc_send_ct++,0) || PetscMPITypeSize((count),(datatype),(&petsc_send_len)) || MPI_Send_c((buf),(count),(datatype),(dest),(tag),(comm)))
471 
472 #define MPI_Wait(request,status) \
473   ((petsc_wait_ct++,petsc_sum_of_waits_ct++,0) || MPI_Wait((request),(status)))
474 
475 #define MPI_Waitany(a,b,c,d) \
476   ((petsc_wait_any_ct++,petsc_sum_of_waits_ct++,0) || MPI_Waitany((a),(b),(c),(d)))
477 
478 #define MPI_Waitall(count,array_of_requests,array_of_statuses) \
479   ((petsc_wait_all_ct++,petsc_sum_of_waits_ct += (PetscLogDouble) (count),0) || MPI_Waitall((count),(array_of_requests),(array_of_statuses)))
480 
481 #define MPI_Allreduce(sendbuf,recvbuf,count,datatype,op,comm) \
482   (petsc_allreduce_ct += PetscMPIParallelComm((comm)),MPI_Allreduce((sendbuf),(recvbuf),(count),(datatype),(op),(comm)))
483 
484 #define MPI_Bcast(buffer,count,datatype,root,comm) \
485   ((petsc_allreduce_ct += PetscMPIParallelComm((comm)),0) || MPI_Bcast((buffer),(count),(datatype),(root),(comm)))
486 
487 #define MPI_Reduce_scatter_block(sendbuf,recvbuf,recvcount,datatype,op,comm) \
488   ((petsc_allreduce_ct += PetscMPIParallelComm((comm)),0) || MPI_Reduce_scatter_block((sendbuf),(recvbuf),(recvcount),(datatype),(op),(comm)))
489 
490 #define MPI_Alltoall(sendbuf,sendcount,sendtype,recvbuf,recvcount,recvtype,comm) \
491   ((petsc_allreduce_ct += PetscMPIParallelComm((comm)),0) || PetscMPITypeSize((sendcount),(sendtype),(&petsc_send_len)) || MPI_Alltoall((sendbuf),(sendcount),(sendtype),(recvbuf),(recvcount),(recvtype),(comm)))
492 
493 #define MPI_Alltoallv(sendbuf,sendcnts,sdispls,sendtype,recvbuf,recvcnts,rdispls,recvtype,comm) \
494   ((petsc_allreduce_ct += PetscMPIParallelComm((comm)),0) || PetscMPITypeSizeComm((comm),(sendcnts),(sendtype),(&petsc_send_len)) || MPI_Alltoallv((sendbuf),(sendcnts),(sdispls),(sendtype),(recvbuf),(recvcnts),(rdispls),(recvtype),(comm)))
495 
496 #define MPI_Allgather(sendbuf,sendcount,sendtype,recvbuf,recvcount,recvtype,comm) \
497   ((petsc_gather_ct += PetscMPIParallelComm((comm)),0) || MPI_Allgather((sendbuf),(sendcount),(sendtype),(recvbuf),(recvcount),(recvtype),(comm)))
498 
499 #define MPI_Allgatherv(sendbuf,sendcount,sendtype,recvbuf,recvcount,displs,recvtype,comm) \
500   ((petsc_gather_ct += PetscMPIParallelComm((comm)),0) || MPI_Allgatherv((sendbuf),(sendcount),(sendtype),(recvbuf),(recvcount),(displs),(recvtype),(comm)))
501 
502 #define MPI_Gather(sendbuf,sendcount,sendtype,recvbuf,recvcount,recvtype,root,comm) \
503   ((petsc_gather_ct++,0) || PetscMPITypeSize((sendcount),(sendtype),(&petsc_send_len)) || MPI_Gather((sendbuf),(sendcount),(sendtype),(recvbuf),(recvcount),(recvtype),(root),(comm)))
504 
505 #define MPI_Gatherv(sendbuf,sendcount,sendtype,recvbuf,recvcount,displs,recvtype,root,comm) \
506   ((petsc_gather_ct++,0) || PetscMPITypeSize((sendcount),(sendtype),(&petsc_send_len)) || MPI_Gatherv((sendbuf),(sendcount),(sendtype),(recvbuf),(recvcount),(displs),(recvtype),(root),(comm)))
507 
508 #define MPI_Scatter(sendbuf,sendcount,sendtype,recvbuf,recvcount,recvtype,root,comm) \
509   ((petsc_scatter_ct++,0) || PetscMPITypeSize((recvcount),(recvtype),(&petsc_recv_len)) || MPI_Scatter((sendbuf),(sendcount),(sendtype),(recvbuf),(recvcount),(recvtype),(root),(comm)))
510 
511 #define MPI_Scatterv(sendbuf,sendcount,displs,sendtype,recvbuf,recvcount,recvtype,root,comm) \
512   ((petsc_scatter_ct++,0) || PetscMPITypeSize((recvcount),(recvtype),(&petsc_recv_len)) || MPI_Scatterv((sendbuf),(sendcount),(displs),(sendtype),(recvbuf),(recvcount),(recvtype),(root),(comm)))
513 
514 #define MPI_Ialltoall(sendbuf,sendcount,sendtype,recvbuf,recvcount,recvtype,comm,request) \
515   ((petsc_allreduce_ct += PetscMPIParallelComm((comm)),0) || PetscMPITypeSize((sendcount),(sendtype),(&petsc_send_len)) || MPI_Ialltoall((sendbuf),(sendcount),(sendtype),(recvbuf),(recvcount),(recvtype),(comm),(request)))
516 
517 #define MPI_Ialltoallv(sendbuf,sendcnts,sdispls,sendtype,recvbuf,recvcnts,rdispls,recvtype,comm,request) \
518   ((petsc_allreduce_ct += PetscMPIParallelComm((comm)),0) || PetscMPITypeSizeComm((comm),(sendcnts),(sendtype),(&petsc_send_len)) || MPI_Ialltoallv((sendbuf),(sendcnts),(sdispls),(sendtype),(recvbuf),(recvcnts),(rdispls),(recvtype),(comm),(request)))
519 
520 #define MPI_Iallgather(sendbuf,sendcount,sendtype,recvbuf,recvcount,recvtype,comm,request) \
521   ((petsc_gather_ct += PetscMPIParallelComm((comm)),0) || MPI_Iallgather((sendbuf),(sendcount),(sendtype),(recvbuf),(recvcount),(recvtype),(comm),(request)))
522 
523 #define MPI_Iallgatherv(sendbuf,sendcount,sendtype,recvbuf,recvcount,displs,recvtype,comm,request) \
524   ((petsc_gather_ct += PetscMPIParallelComm((comm)),0) || MPI_Iallgatherv((sendbuf),(sendcount),(sendtype),(recvbuf),(recvcount),(displs),(recvtype),(comm),(request)))
525 
526 #define MPI_Igather(sendbuf,sendcount,sendtype,recvbuf,recvcount,recvtype,root,comm,request) \
527   ((petsc_gather_ct++,0) || PetscMPITypeSize((sendcount),(sendtype),(&petsc_send_len)) || MPI_Igather((sendbuf),(sendcount),(sendtype),(recvbuf),(recvcount),(recvtype),(root),(comm),(request)))
528 
529 #define MPI_Igatherv(sendbuf,sendcount,sendtype,recvbuf,recvcount,displs,recvtype,root,comm,request) \
530   ((petsc_gather_ct++,0) || PetscMPITypeSize((sendcount),(sendtype),(&petsc_send_len)) || MPI_Igatherv((sendbuf),(sendcount),(sendtype),(recvbuf),(recvcount),(displs),(recvtype),(root),(comm),(request)))
531 
532 #define MPI_Iscatter(sendbuf,sendcount,sendtype,recvbuf,recvcount,recvtype,root,comm,request) \
533   ((petsc_scatter_ct++,0) || PetscMPITypeSize((recvcount),(recvtype),(&petsc_recv_len)) || MPI_Iscatter((sendbuf),(sendcount),(sendtype),(recvbuf),(recvcount),(recvtype),(root),(comm),(request)))
534 
535 #define MPI_Iscatterv(sendbuf,sendcount,displs,sendtype,recvbuf,recvcount,recvtype,root,comm,request) \
536   ((petsc_scatter_ct++,0) || PetscMPITypeSize((recvcount),(recvtype),(&petsc_recv_len)) || MPI_Iscatterv((sendbuf),(sendcount),(displs),(sendtype),(recvbuf),(recvcount),(recvtype),(root),(comm),(request)))
537 
538 #else
539 
540 #define MPI_Startall_irecv(count,datatype,number,requests) \
541   ((number) && MPI_Startall((number),(requests)))
542 
543 #define MPI_Startall_isend(count,datatype,number,requests) \
544   ((number) && MPI_Startall((number),(requests)))
545 
546 #define MPI_Start_isend(count,datatype,requests) \
547   (MPI_Start((requests)))
548 
549 #endif /* !MPIUNI_H && ! PETSC_HAVE_BROKEN_RECURSIVE_MACRO */
550 
551 #else  /* ---Logging is turned off --------------------------------------------*/
552 
553 #define PetscLogMemory                     PETSC_FALSE
554 
555 #define PetscLogFlops(n)                   0
556 #define PetscGetFlops(a)                   (*(a) = 0.0,0)
557 
558 #define PetscLogStageRegister(a,b)         0
559 #define PetscLogStagePush(a)               0
560 #define PetscLogStagePop()                 0
561 #define PetscLogStageSetActive(a,b)        0
562 #define PetscLogStageGetActive(a,b)        0
563 #define PetscLogStageGetVisible(a,b)       0
564 #define PetscLogStageSetVisible(a,b)       0
565 #define PetscLogStageGetId(a,b)            (*(b)=0,0)
566 
567 #define PetscLogEventRegister(a,b,c)       0
568 #define PetscLogEventSetCollective(a,b)    0
569 #define PetscLogEventIncludeClass(a)       0
570 #define PetscLogEventExcludeClass(a)       0
571 #define PetscLogEventActivate(a)           0
572 #define PetscLogEventDeactivate(a)         0
573 #define PetscLogEventDeactivatePush(a)     0
574 #define PetscLogEventDeactivatePop(a)      0
575 #define PetscLogEventActivateClass(a)      0
576 #define PetscLogEventDeactivateClass(a)    0
577 #define PetscLogEventSetActiveAll(a,b)     0
578 #define PetscLogEventGetId(a,b)            (*(b)=0,0)
579 #define PetscLogEventGetPerfInfo(a,b,c)    0
580 #define PetscLogEventSetDof(a,b,c)         0
581 #define PetscLogEventSetError(a,b,c)       0
582 
583 #define PetscLogPLB                        0
584 #define PetscLogPLE                        0
585 #define PetscLogPHC                        0
586 #define PetscLogPHD                        0
587 
588 #define PetscLogObjectParents(p,n,c)       0
589 #define PetscLogObjectCreate(h)            0
590 #define PetscLogObjectDestroy(h)           0
591 PETSC_EXTERN PetscErrorCode PetscLogObjectState(PetscObject,const char[],...) PETSC_ATTRIBUTE_FORMAT(2,3);
592 
593 #define PetscLogDefaultBegin()             0
594 #define PetscLogAllBegin()                 0
595 #define PetscLogNestedBegin()              0
596 #define PetscLogTraceBegin(file)           0
597 #define PetscLogActions(a)                 0
598 #define PetscLogObjects(a)                 0
599 #define PetscLogSetThreshold(a,b)          0
600 #define PetscLogSet(lb,le)                 0
601 
602 #define PetscLogView(viewer)               0
603 #define PetscLogViewFromOptions()          0
604 #define PetscLogDump(c)                    0
605 
606 #define PetscLogEventSync(e,comm)          0
607 #define PetscLogEventBegin(e,o1,o2,o3,o4)  0
608 #define PetscLogEventEnd(e,o1,o2,o3,o4)    0
609 
610 /* If PETSC_USE_LOG is NOT defined, these still need to be! */
611 #define MPI_Startall_irecv(count,datatype,number,requests) ((number) && MPI_Startall(number,requests))
612 #define MPI_Startall_isend(count,datatype,number,requests) ((number) && MPI_Startall(number,requests))
613 #define MPI_Start_isend(count,datatype,requests)           MPI_Start(requests)
614 
615 #endif   /* PETSC_USE_LOG */
616 
617 #if defined (PETSC_USE_LOG) && defined(PETSC_HAVE_DEVICE)
618 
619 /* Global GPU counters */
620 PETSC_EXTERN PetscLogDouble petsc_ctog_ct;
621 PETSC_EXTERN PetscLogDouble petsc_gtoc_ct;
622 PETSC_EXTERN PetscLogDouble petsc_ctog_sz;
623 PETSC_EXTERN PetscLogDouble petsc_gtoc_sz;
624 PETSC_EXTERN PetscLogDouble petsc_ctog_ct_scalar;
625 PETSC_EXTERN PetscLogDouble petsc_gtoc_ct_scalar;
626 PETSC_EXTERN PetscLogDouble petsc_ctog_sz_scalar;
627 PETSC_EXTERN PetscLogDouble petsc_gtoc_sz_scalar;
628 PETSC_EXTERN PetscLogDouble petsc_gflops;
629 PETSC_EXTERN PetscLogDouble petsc_gtime;
630 
631 PETSC_STATIC_INLINE PetscErrorCode PetscLogCpuToGpu(PetscLogDouble size)
632 {
633   PetscFunctionBegin;
634   petsc_ctog_ct += 1;
635   petsc_ctog_sz += size;
636   PetscFunctionReturn(0);
637 }
638 
639 PETSC_STATIC_INLINE PetscErrorCode PetscLogGpuToCpu(PetscLogDouble size)
640 {
641   PetscFunctionBegin;
642   petsc_gtoc_ct += 1;
643   petsc_gtoc_sz += size;
644   PetscFunctionReturn(0);
645 }
646 
647 PETSC_STATIC_INLINE PetscErrorCode PetscLogCpuToGpuScalar(PetscLogDouble size)
648 {
649   PetscFunctionBegin;
650   petsc_ctog_ct_scalar += 1;
651   petsc_ctog_sz_scalar += size;
652   PetscFunctionReturn(0);
653 }
654 
655 PETSC_STATIC_INLINE PetscErrorCode PetscLogGpuToCpuScalar(PetscLogDouble size)
656 {
657   PetscFunctionBegin;
658   petsc_gtoc_ct_scalar += 1;
659   petsc_gtoc_sz_scalar += size;
660   PetscFunctionReturn(0);
661 }
662 
663 /*@C
664        PetscLogGpuFlops - Log how many flops are performed in a calculation on the device
665 
666    Input Parameter:
667 .   flops - the number of flops
668 
669    Notes:
670      To limit the chance of integer overflow when multiplying by a constant, represent the constant as a double,
671      not an integer. Use PetscLogFlops(4.0*n) not PetscLogFlops(4*n)
672 
673    Level: intermediate
674 
675 .seealso: PetscLogView(), PetscLogFlops(), PetscLogGpuTimeBegin(), PetscLogGpuTimeEnd()
676 @*/
677 PETSC_STATIC_INLINE PetscErrorCode PetscLogGpuFlops(PetscLogDouble n)
678 {
679   PetscFunctionBegin;
680   if (PetscUnlikelyDebug(n < 0)) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_OUTOFRANGE,"Cannot log negative flops");
681   petsc_TotalFlops += PETSC_FLOPS_PER_OP*n;
682   petsc_gflops += PETSC_FLOPS_PER_OP*n;
683   PetscFunctionReturn(0);
684 }
685 
686 PETSC_STATIC_INLINE PetscErrorCode PetscLogGpuTimeAdd(PetscLogDouble t)
687 {
688   PetscFunctionBegin;
689   petsc_gtime += t;
690   PetscFunctionReturn(0);
691 }
692 
693 PETSC_EXTERN PetscErrorCode PetscLogGpuTimeBegin(void);
694 PETSC_EXTERN PetscErrorCode PetscLogGpuTimeEnd(void);
695 
696 #else
697 
698 #define PetscLogCpuToGpu(a)                0
699 #define PetscLogGpuToCpu(a)                0
700 #define PetscLogCpuToGpuScalar(a)          0
701 #define PetscLogGpuToCpuScalar(a)          0
702 #define PetscLogGpuFlops(a)                0
703 #define PetscLogGpuTimeAdd(a)              0
704 #define PetscLogGpuTimeBegin()             0
705 #define PetscLogGpuTimeEnd()               0
706 
707 #endif /* PETSC_USE_LOG && PETSC_HAVE_DEVICE */
708 
709 #define PetscPreLoadBegin(flag,name) \
710 do {\
711   PetscBool      PetscPreLoading = flag;\
712   int            PetscPreLoadMax,PetscPreLoadIt;\
713   PetscLogStage  _stageNum;\
714   PetscErrorCode _3_ierr; \
715   _3_ierr = PetscOptionsGetBool(NULL,NULL,"-preload",&PetscPreLoading,NULL);CHKERRQ(_3_ierr); \
716   PetscPreLoadMax = (int)(PetscPreLoading);\
717   PetscPreLoadingUsed = PetscPreLoading ? PETSC_TRUE : PetscPreLoadingUsed;\
718   for (PetscPreLoadIt=0; PetscPreLoadIt<=PetscPreLoadMax; PetscPreLoadIt++) {\
719     PetscPreLoadingOn = PetscPreLoading;\
720     _3_ierr = PetscBarrier(NULL);CHKERRQ(_3_ierr);\
721     if (PetscPreLoadIt>0) {\
722       _3_ierr = PetscLogStageGetId(name,&_stageNum);CHKERRQ(_3_ierr);\
723     } else {\
724       _3_ierr = PetscLogStageRegister(name,&_stageNum);CHKERRQ(_3_ierr); \
725     }\
726     _3_ierr = PetscLogStageSetActive(_stageNum,(PetscBool)(!PetscPreLoadMax || PetscPreLoadIt));\
727     _3_ierr = PetscLogStagePush(_stageNum);CHKERRQ(_3_ierr);
728 
729 #define PetscPreLoadEnd() \
730     _3_ierr = PetscLogStagePop();CHKERRQ(_3_ierr);\
731     PetscPreLoading = PETSC_FALSE;\
732   }\
733 } while (0)
734 
735 #define PetscPreLoadStage(name) do {                                         \
736     _3_ierr = PetscLogStagePop();CHKERRQ(_3_ierr);                      \
737     if (PetscPreLoadIt>0) {                                                  \
738       _3_ierr = PetscLogStageGetId(name,&_stageNum);CHKERRQ(_3_ierr);   \
739     } else {                                                            \
740       _3_ierr = PetscLogStageRegister(name,&_stageNum);CHKERRQ(_3_ierr); \
741     }                                                                   \
742     _3_ierr = PetscLogStageSetActive(_stageNum,(PetscBool)(!PetscPreLoadMax || PetscPreLoadIt)); \
743     _3_ierr = PetscLogStagePush(_stageNum);CHKERRQ(_3_ierr);            \
744   } while (0)
745 
746 /* some vars for logging */
747 PETSC_EXTERN PetscBool PetscPreLoadingUsed;       /* true if we are or have done preloading */
748 PETSC_EXTERN PetscBool PetscPreLoadingOn;         /* true if we are currently in a preloading calculation */
749 
750 #endif
751