1 2 #include <petscsys.h> 3 4 /*@C 5 PetscStartMatlab - starts up MATLAB with a MATLAB script 6 7 Logically Collective, but only MPI rank 0 in the communicator does anything 8 9 Input Parameters: 10 + comm - MPI communicator 11 . machine - optional machine to run MATLAB on 12 - script - name of script (without the .m) 13 14 Output Parameter: 15 . fp - a file pointer returned from `PetscPOpen()` 16 17 Level: intermediate 18 19 Notes: 20 This starts up a "regular" MATLAB interactive session, it does not start the MATLAB Engine, this is controlled with `PetscMatlabEngine` 21 22 Warning, this overwrites your `matlab/startup.m` file 23 24 The script must be in your MATLAB path or current directory 25 26 .seealso: `PetscPOpen()`, `PetscPClose()`, `PetscMatlabEngine` 27 @*/ 28 PetscErrorCode PetscStartMatlab(MPI_Comm comm, const char machine[], const char script[], FILE **fp) 29 { 30 FILE *fd; 31 char command[512]; 32 #if defined(PETSC_HAVE_UCBPS) && defined(PETSC_HAVE_POPEN) 33 char buf[1024], *found; 34 PetscMPIInt rank; 35 #endif 36 37 PetscFunctionBegin; 38 #if defined(PETSC_HAVE_UCBPS) && defined(PETSC_HAVE_POPEN) 39 /* check if MATLAB is not already running */ 40 PetscCall(PetscPOpen(comm, machine, "/usr/ucb/ps -ugxww | grep matlab | grep -v grep", "r", &fd)); 41 PetscCallMPI(MPI_Comm_rank(comm, &rank)); 42 if (rank == 0) found = fgets(buf, 1024, fd); 43 PetscCallMPI(MPI_Bcast(&found, 1, MPI_CHAR, 0, comm)); 44 PetscCall(PetscPClose(comm, fd)); 45 if (found) PetscFunctionReturn(PETSC_SUCCESS); 46 #endif 47 48 if (script) { 49 /* the remote machine won't know about current directory, so add it to MATLAB path */ 50 /* the extra \" are to protect possible () in the script command from the shell */ 51 PetscCall(PetscSNPrintf(command, PETSC_STATIC_ARRAY_LENGTH(command), "echo \"delete ${HOMEDIRECTORY}/matlab/startup.m ; path(path,'${WORKINGDIRECTORY}'); %s \" > ${HOMEDIRECTORY}/matlab/startup.m", script)); 52 #if defined(PETSC_HAVE_POPEN) 53 PetscCall(PetscPOpen(comm, machine, command, "r", &fd)); 54 PetscCall(PetscPClose(comm, fd)); 55 #endif 56 } 57 #if defined(PETSC_HAVE_POPEN) 58 PetscCall(PetscPOpen(comm, machine, "xterm -display ${DISPLAY} -e matlab -nosplash", "r", fp)); 59 #endif 60 PetscFunctionReturn(PETSC_SUCCESS); 61 } 62