2 #include "gnunet_util_lib.h"
6 * Generic logging shorthand
8 #define LOG(kind,...) \
9 GNUNET_log_from (kind, "gnunet-mpi-test", __VA_ARGS__)
11 int main (int argc, char *argv[])
15 struct GNUNET_OS_Process *proc;
18 enum GNUNET_OS_ProcessStatusType proc_status;
25 if (MPI_SUCCESS != MPI_Init (&argc, &argv))
30 if (MPI_SUCCESS != MPI_Comm_size (MPI_COMM_WORLD, &ntasks))
35 if (MPI_SUCCESS != MPI_Comm_rank (MPI_COMM_WORLD, &rank))
41 (void) GNUNET_asprintf (&filename, "%d-%d.mpiout", (int) pid, rank);
42 msg_size = GNUNET_asprintf (&msg, "My rank is: %d\n", rank);
44 if (msg_size == GNUNET_DISK_fn_write (filename,
46 GNUNET_DISK_PERM_USER_READ
47 | GNUNET_DISK_PERM_GROUP_READ
48 | GNUNET_DISK_PERM_USER_WRITE
49 | GNUNET_DISK_PERM_GROUP_WRITE))
51 GNUNET_free (filename);
60 proc = GNUNET_OS_start_process (GNUNET_NO,
61 GNUNET_OS_INHERIT_STD_ALL,
67 printf ("Cannot exec\n");
72 ret = GNUNET_OS_process_status (proc, &proc_status, &code);
73 } while (GNUNET_NO == ret);
74 GNUNET_assert (GNUNET_NO != ret);
79 LOG (GNUNET_ERROR_TYPE_WARNING, "Child terminated abnormally\n");
89 (void) MPI_Finalize ();
92 printf ("Something went wrong\n");