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man: mcexec: add "-n <ppn>" option mandatory when using MPI (except Fujitsu MPI)

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Change-Id: I6d2d0337fdab13325642344529401f86bbadfdcd
This commit is contained in:
Masamichi Takagi
2020-07-30 15:10:42 +09:00
committed by Masamichi Takagi
parent c55a02ffba
commit 1bfa339ccf
1 changed files with 7 additions and 3 deletions
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executer/user/mcexec.1in
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@ -22,11 +22,15 @@ are described below.
.TP .TP
.B -n N .B -n N
Specify the number of MPI ranks run on the node. Specify the number of MPI ranks run on the node when using MPI (except Fujitsu MPI).
e.g., For example,
.br
$ mpirun -n 32 -ppn 4 mcexec -n 4 ./a.out $ mpirun -n 32 -ppn 4 mcexec -n 4 ./a.out
In the above example, the ./a.out program runs on eight nodes each of .br
the ./a.out program runs on eight nodes each of
which has four processes. which has four processes.
You must specify this option when using MPI (except Fujitsu MPI).
Undefined behavior entails if not.
.TP .TP
.B -t N .B -t N