xref: /libCEED/tests/t502-operator-f.f90 (revision 68b2f3bb6a01fa010da0a56571daeae100b32294)
1!-----------------------------------------------------------------------
2!
3! Header with QFunctions
4!
5      include 't502-operator-f.h'
6!-----------------------------------------------------------------------
7      program test
8
9      include 'ceedf.h'
10
11      integer ceed,err,i,j
12      integer stridesu(3)
13      integer erestrictx,erestrictu,erestrictui
14      integer bx,bu
15      integer qf_setup,qf_mass
16      integer op_setup,op_mass
17      integer qdata,x,u,v
18      integer nelem,p,q
19      parameter(nelem=15)
20      parameter(p=5)
21      parameter(q=8)
22      integer nx,nu
23      parameter(nx=nelem+1)
24      parameter(nu=nelem*(p-1)+1)
25      integer indx(nelem*2)
26      integer indu(nelem*p)
27      real*8 arrx(nx)
28      integer*8 voffset,xoffset
29
30      real*8 hu(nu*2),hv(nu*2)
31      real*8 total1,total2
32
33      character arg*32
34
35      external setup,mass
36
37      call getarg(1,arg)
38      call ceedinit(trim(arg)//char(0),ceed,err)
39
40      do i=0,nx-1
41        arrx(i+1)=i/(nx-1.d0)
42      enddo
43      do i=0,nelem-1
44        indx(2*i+1)=i
45        indx(2*i+2)=i+1
46      enddo
47
48      call ceedelemrestrictioncreate(ceed,nelem,2,1,1,nx,ceed_mem_host,&
49     & ceed_use_pointer,indx,erestrictx,err)
50
51      do i=0,nelem-1
52        do j=0,p-1
53          indu(p*i+j+1)=2*(i*(p-1)+j)
54        enddo
55      enddo
56
57      call ceedelemrestrictioncreate(ceed,nelem,p,2,1,2*nu,ceed_mem_host,&
58     & ceed_use_pointer,indu,erestrictu,err)
59      stridesu=[1,q,q]
60      call ceedelemrestrictioncreatestrided(ceed,nelem,q,1,q*nelem,stridesu,&
61     & erestrictui,err)
62
63      call ceedbasiscreatetensorh1lagrange(ceed,1,1,2,q,ceed_gauss,bx,err)
64      call ceedbasiscreatetensorh1lagrange(ceed,1,2,p,q,ceed_gauss,bu,err)
65
66      call ceedqfunctioncreateinterior(ceed,1,setup,&
67     &SOURCE_DIR&
68     &//'t502-operator.h:setup'//char(0),qf_setup,err)
69      call ceedqfunctionaddinput(qf_setup,'_weight',1,ceed_eval_weight,err)
70      call ceedqfunctionaddinput(qf_setup,'dx',1,ceed_eval_grad,err)
71      call ceedqfunctionaddoutput(qf_setup,'rho',1,ceed_eval_none,err)
72
73      call ceedqfunctioncreateinterior(ceed,1,mass,&
74     &SOURCE_DIR&
75     &//'t502-operator.h:mass'//char(0),qf_mass,err)
76      call ceedqfunctionaddinput(qf_mass,'rho',1,ceed_eval_none,err)
77      call ceedqfunctionaddinput(qf_mass,'u',2,ceed_eval_interp,err)
78      call ceedqfunctionaddoutput(qf_mass,'v',2,ceed_eval_interp,err)
79
80      call ceedoperatorcreate(ceed,qf_setup,ceed_qfunction_none,&
81     & ceed_qfunction_none,op_setup,err)
82      call ceedoperatorcreate(ceed,qf_mass,ceed_qfunction_none,&
83     & ceed_qfunction_none,op_mass,err)
84
85      call ceedvectorcreate(ceed,nx,x,err)
86      xoffset=0
87      call ceedvectorsetarray(x,ceed_mem_host,ceed_use_pointer,arrx,xoffset,err)
88      call ceedvectorcreate(ceed,nelem*q,qdata,err)
89
90      call ceedoperatorsetfield(op_setup,'_weight',ceed_elemrestriction_none,&
91     & bx,ceed_vector_none,err)
92      call ceedoperatorsetfield(op_setup,'dx',erestrictx,bx,&
93     & ceed_vector_active,err)
94      call ceedoperatorsetfield(op_setup,'rho',erestrictui,&
95     & ceed_basis_collocated,ceed_vector_active,err)
96      call ceedoperatorsetfield(op_mass,'rho',erestrictui,&
97     & ceed_basis_collocated,qdata,err)
98      call ceedoperatorsetfield(op_mass,'u',erestrictu,bu,&
99     & ceed_vector_active,err)
100      call ceedoperatorsetfield(op_mass,'v',erestrictu,bu,&
101     & ceed_vector_active,err)
102
103      call ceedoperatorapply(op_setup,x,qdata,ceed_request_immediate,err)
104
105      call ceedvectorcreate(ceed,2*nu,u,err)
106      call ceedvectorgetarray(u,ceed_mem_host,hu,voffset,err)
107      do i=1,nu
108        hu(voffset+2*i-1)=1.
109        hu(voffset+2*i)=2.
110      enddo
111      call ceedvectorrestorearray(u,hu,voffset,err)
112      call ceedvectorcreate(ceed,2*nu,v,err)
113      call ceedoperatorapply(op_mass,u,v,ceed_request_immediate,err)
114
115      call ceedvectorgetarrayread(v,ceed_mem_host,hv,voffset,err)
116      total1=0.
117      total2=0.
118      do i=1,nu
119        total1=total1+hv(voffset+2*i-1)
120        total2=total2+hv(voffset+2*i)
121      enddo
122      if (abs(total1-1.)>1.0d-10) then
123! LCOV_EXCL_START
124        write(*,*) 'Computed Area: ',total1,' != True Area: 1.0'
125! LCOV_EXCL_STOP
126      endif
127      if (abs(total2-2.)>1.0d-10) then
128! LCOV_EXCL_START
129        write(*,*) 'Computed Area: ',total2,' != True Area: 2.0'
130! LCOV_EXCL_STOP
131      endif
132      call ceedvectorrestorearrayread(v,hv,voffset,err)
133
134      call ceedvectordestroy(qdata,err)
135      call ceedvectordestroy(x,err)
136      call ceedvectordestroy(u,err)
137      call ceedvectordestroy(v,err)
138      call ceedoperatordestroy(op_mass,err)
139      call ceedoperatordestroy(op_setup,err)
140      call ceedqfunctiondestroy(qf_mass,err)
141      call ceedqfunctiondestroy(qf_setup,err)
142      call ceedbasisdestroy(bu,err)
143      call ceedbasisdestroy(bx,err)
144      call ceedelemrestrictiondestroy(erestrictu,err)
145      call ceedelemrestrictiondestroy(erestrictx,err)
146      call ceedelemrestrictiondestroy(erestrictui,err)
147      call ceeddestroy(ceed,err)
148      end
149!-----------------------------------------------------------------------
150