Sep 2021 08:46:26 -0400
From: Bennet Fauber
To: Carl Ponder , Open MPI Users
CC: Ray Muno
*External email: Use caution opening links or attachments*
You may be seeing this?
C language issues
Default to |-fno-common|
A common mistake in C is omitting |extern| when
For now, you can suppress this error building OpenMPI 4.1.1
./.libs/liblocal_ops_avx512.a(liblocal_ops_avx512_la-op_avx_functions.o):(.data+0x0):
multipledefinition of `ompi_op_avx_functions_avx2'
./.libs/liblocal_ops_avx2.a(liblocal_ops_avx2_la-op_avx_functions.o):(.data+0x0):
fir
Building OpenMPI 4.1.0 with the PGI 21.1 compiler on a Broadwell
processor, I get this error
libtool: compile: pgcc -DHAVE_CONFIG_H -I.
-I../../../../opal/include -I../../../../ompi/include
-I../../../../oshmem/include
-I../../../../opal/mca/hwloc/hwloc201/hwloc/include/private/auto
I usually build OpenMPI using these flags
--enable-mpi-cxx --enable-mpi-cxx-seek --enable-cxx-exceptions
but get this error for the 4.1.0 source
checking for compiler exception flags... -fexceptions
checking to see if C compiler likes the exception flags... no
configure: WARNING: C+
*On 12/06/2015 11:07 AM, Carl Ponder wrote:*
I'm trying to run a multi-node job but I want to map all of the
processes to cores on socket #0 only.
I'm having a hard time figuring out how to do this, the obvious
combinations
mpirun -n 8 -npernode 4 -repor
*On 12/06/2015 11:28 AM, Ralph Castain wrote:*
You want "-bind-to socket -slot-list=0,2,4,6"
Or if you want each process bound to a single core on the socket,
then change “socket” to “core” in the above
As for host/rankfile - we do indeed support just asking for “the
next em
I'm trying to run a multi-node job but I want to map all of the
processes to cores on socket #0 only.
I'm having a hard time figuring out how to do this, the obvious combinations
mpirun -n 8 -npernode 4 -report-bindings ...
mpirun -n 8 -npernode 4 --map-by core -report-bindings ...
mp
