diff options
Diffstat (limited to 'test')
| -rw-r--r-- | test/h5test.c | 81 |
1 files changed, 49 insertions, 32 deletions
diff --git a/test/h5test.c b/test/h5test.c index 15daf3f..555485b 100644 --- a/test/h5test.c +++ b/test/h5test.c @@ -901,58 +901,75 @@ int h5_szip_can_encode(void ) * 4/4/05 * * Modifications: + * Use original getenv if MPI is not initialized. This happens + * one uses the PHDF5 library to build a serial nature code. + * Albert 2006/04/07 * *------------------------------------------------------------------------- */ char* getenv_all(MPI_Comm comm, int root, const char* name) { - int nID; - int len = -1; + int mpi_size, mpi_rank, mpi_initialized; + int len; static char* env = NULL; MPI_Status Status; assert(name); - MPI_Comm_rank(comm, &nID); - - /* The root task does the getenv call - * and sends the result to the other tasks */ - if(nID == root) - { - env = HDgetenv(name); + MPI_Initialized(&mpi_initialized); + if (!mpi_initialized){ + /* use original getenv */ if(env) - { - len = HDstrlen(env); - MPI_Bcast(&len, 1, MPI_INT, root, comm); - MPI_Bcast(env, len, MPI_CHAR, root, comm); - } - /* len -1 indicates that the variable was not in the environment */ - else - MPI_Bcast(&len, 1, MPI_INT, root, comm); - } - else - { - MPI_Bcast(&len, 1, MPI_INT, root, comm); - if(len >= 0) - { - if(env == NULL) - env = (char*) HDmalloc(len+1); - else if(strlen(env) < len) - env = (char*) HDrealloc(env, len+1); + HDfree(env); + env = HDgetenv(name); + }else{ + MPI_Comm_rank(comm, &mpi_rank); + MPI_Comm_size(comm, &mpi_size); + assert(root < mpi_size); - MPI_Bcast(env, len, MPI_CHAR, root, comm); - env[len] = '\0'; + /* The root task does the getenv call + * and sends the result to the other tasks */ + if(mpi_rank == root) + { + env = HDgetenv(name); + if(env) + { + len = HDstrlen(env); + MPI_Bcast(&len, 1, MPI_INT, root, comm); + MPI_Bcast(env, len, MPI_CHAR, root, comm); + } + else{ + /* len -1 indicates that the variable was not in the environment */ + len = -1; + MPI_Bcast(&len, 1, MPI_INT, root, comm); + } } else { - if(env) - HDfree(env); - env = NULL; + MPI_Bcast(&len, 1, MPI_INT, root, comm); + if(len >= 0) + { + if(env == NULL) + env = (char*) HDmalloc(len+1); + else if(strlen(env) < len) + env = (char*) HDrealloc(env, len+1); + + MPI_Bcast(env, len, MPI_CHAR, root, comm); + env[len] = '\0'; + } + else + { + if(env) + HDfree(env); + env = NULL; + } } } +#ifndef NDEBUG MPI_Barrier(comm); +#endif return env; } |