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use MPI_Get_library_version() API to provide a more detailed version info, not just the MPI standard level

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very chatty output (e.g. from MPICH) is truncated to the next line after 80 characters.
This commit is contained in:
Axel Kohlmeyer
2019-07-26 15:44:10 -04:00
parent a0e005f93c
commit 94126e5424
1 changed files with 9 additions and 1 deletions
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10
src/info.cpp
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@ -353,11 +353,19 @@ void Info::command(int narg, char **arg)
}
if (flags & COMM) {
int major,minor;
int major,minor,len;
char version[MPI_MAX_LIBRARY_VERSION_STRING];
MPI_Get_version(&major,&minor);
MPI_Get_library_version(version,&len);
if (len > 80) {
char *ptr = strchr(version+80,'\n');
if (ptr) *ptr = '\0';
}
fprintf(out,"\nCommunication information:\n");
fprintf(out,"MPI library level: MPI v%d.%d\n",major,minor);
fprintf(out,"MPI version: %s\n",version);
fprintf(out,"Comm style = %s, Comm layout = %s\n",
commstyles[comm->style], commlayout[comm->layout]);
fprintf(out,"Communicate velocities for ghost atoms = %s\n",