Indeed there are many potential solutions, but all require too much
intervention on the code to be generic enough. As we discussed
privately mid last year, the "flatten datatype" approach seems to me
to be the most profitable.It is simple to implement and it is also
generic, a simple change will ma
Btw, the proposed validator was incorrect the first printf instead of
printf(“[%d] rbuf[%d]=%2d expected:%2d\n”, rank, 0, recvbuf[i], size);
should be
printf(“[%d] rbuf[%d]=%2d expected:%2d\n”, rank, 0, recvbuf[0], size);
George.
On Apr 21, 2014, at 19:32 , George Bosilca wrote:
> r3
r31473 should fix this issue.
George.
On Apr 21, 2014, at 10:05 , Lisandro Dalcin wrote:
> I'm not sure this is actually a bug, but the difference may surprise
> users. It seems that the implementation of
> MPI_Ireduce_scatter(MPI_IN_PLACE,...) (ab?)uses the recvbuf to compute
> the intermed
Thanks for the bug report (r31467).
George.
On Apr 21, 2014, at 06:05 , Lisandro Dalcin wrote:
> IMHO, MPI_Op_commutative() should not fail for predefined reduced operations.
>
> [dalcinl@kw2060 openmpi]$ ompi_info --version
> Open MPI v1.8
>
> http://www.open-mpi.org/community/help/
> [da
Good catch. Commit r31466.
Thanks,
George.
On Apr 21, 2014, at 07:56 , Lisandro Dalcin wrote:
> I believe the problem is in the following source code line
> (file:ompi_datatype_args.c, line:221):
>
> https://bitbucket.org/ompiteam/ompi-svn-mirror/src/v1.8/ompi/datatype/ompi_datatype_arg
A very basic test for MPI_Comm_create_group() is failing for me. I'm
pasting the code, the failure, and output from valgrind.
[dalcinl@kw2060 openmpi]$ cat comm_create_group.c
#include
int main(int argc, char *argv[])
{
MPI_Group group;
MPI_Comm comm;
MPI_Init(&argc, &argv);
MPI_Comm_grou
I'm not sure this is actually a bug, but the difference may surprise
users. It seems that the implementation of
MPI_Ireduce_scatter(MPI_IN_PLACE,...) (ab?)uses the recvbuf to compute
the intermediate reduction, while MPI_Reduce_scatter(MPI_IN_PLACE,...)
does not.
Look at the following code (setup
It seems the implementation of MPI_Add_error_class() is out of sync
with the definition of MPI_ERR_LASTCODE.
Please review the list of error classes in mpi.h and the code in this
file:
https://bitbucket.org/ompiteam/ompi-svn-mirror/src/v1.8/ompi/errhandler/errcode.c
BTW, in that file, all the MP
I believe the problem is in the following source code line
(file:ompi_datatype_args.c, line:221):
https://bitbucket.org/ompiteam/ompi-svn-mirror/src/v1.8/ompi/datatype/ompi_datatype_args.c?at=v1.8#cl-221
I think you should just remove that bogus line, and that's all.
[dalcinl@kw2060 openmpi]$ c
Open MPI errors in Win_fence() when the assertion contains both
MPI_MODE_NOPRECEDE and MPI_MODE_NOSUCCEED
Could you explain me why the following code is wrong? Please note that
the fence call with assertion !=0 is issued before and after fence
calls with assertion=0, and I'm not making any modific
IMHO, MPI_Op_commutative() should not fail for predefined reduced operations.
[dalcinl@kw2060 openmpi]$ ompi_info --version
Open MPI v1.8
http://www.open-mpi.org/community/help/
[dalcinl@kw2060 openmpi]$ cat op_commutative.c
#include
int main(int argc, char *argv[])
{
int flag;
MPI_Init(&arg
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