e.
>
>
> On Sat, Mar 13, 2021 at 4:47 AM Pierre Jolivet via users
> wrote:
>> Hello,
>> The following piece of code generates Valgrind errors with OpenMPI 4.1.0,
>> while it is Valgrind-clean with MPICH and OpenMPI 4.0.5.
>> I don’t think I’m doing
Hello,
The following piece of code generates Valgrind errors with OpenMPI 4.1.0, while
it is Valgrind-clean with MPICH and OpenMPI 4.0.5.
I don’t think I’m doing anything illegal, so could this be a regression
introduced in 4.1.0?
Thanks,
Pierre
$ /opt/openmpi-4.1.0/bin/mpicxx ompi.cxx -g -O0 -
Hello,
Just like r29736, I believe that there are some missing tests in
ompi/mca/coll/libnbc/nbc_iscatterv.c and ompi/mca/coll/libnbc/nbc_igatherv.c
Thoughts ?
Pierre
Index: nbc_igatherv.c
===
--- nbc_igatherv.c (revision 29756)
On Nov 24, 2013, at 3:03 PM, Jed Brown wrote:
> Ralph Castain writes:
>
>> Given that we have no idea what Homebrew uses, I don't know how we
>> could clarify/respond.
>
Ralph, it is pretty easy to know what Homebrew uses, c.f.
https://github.com/mxcl/homebrew/blob/master/Library/Formula/op
Karl,
What does “mpic++ -show” returns ? It is possible that you are
compiling/linking with “c++”, which will defaults to clang++, while you
compiled OpenMPI with g++.
Since libstdc++ and libc++ have incompatible ABI, that might be why you are
getting a wrong behavior.
Also, it could be worthwhi
Dominique,
It looks like you are compiling Open MPI with Homebrew. The flags they use in
the formula when --enable-mpi-thread-multiple is wrong.
c.f. a similar problem with MacPorts
https://lists.macosforge.org/pipermail/macports-tickets/2013-June/138145.html.
Pierre
On Nov 23, 2013, at 4:56 PM
George,
On Nov 22, 2013, at 5:21 AM, George Bosilca wrote:
> Pierre,
>
> On Nov 22, 2013, at 02:39 , Pierre Jolivet wrote:
>
>> George,
>> I completely agree that the code I sent was a good example of what NOT to do
>> with collective and non-blocking communica
> {
>int taskid, ntasks;
>MPI_Init(&argc, &argv);
>MPI_Request rq;
>MPI_Comm_rank(MPI_COMM_WORLD,&taskid);
>MPI_Comm_size(MPI_COMM_WORLD,&ntasks);
>double r;
>int l = 0;
>
>MPI_Iscatter(NULL, 0, MPI_DOUBLE, &am
Hello,
The following code doesn’t execute properly :
#include
int main(int argc, char** argv) {
int taskid, ntasks;
MPI_Init(&argc, &argv);
MPI_Request rq;
MPI_Comm_rank(MPI_COMM_WORLD,&taskid);
MPI_Comm_size(MPI_COMM_WORLD,&ntasks);
double* r;
int l = 0;
