statut has to be allocated of size MPI_STATUS_SIZE not nb_pr. On Nov 21, 2013, at 10:29 AM, vincent russier <[email protected]> wrote:

I include the trial code as an attached file. In the meantime, I tried to run with increasing number of processes; I realized that it works without error messages if np >= 8 and fails otherwise.

Thanks, VR

Le jeudi 21 novembre 2013 à 10:03 -0600, Wesley Bland a écrit :

...

Can you include the minimum working example? We need to see the code to know what's going wrong.

Thanks, Wesley

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On Nov 21, 2013, at 10:00 AM, vincent russier <[email protected]> wrote:

Hi,

I have installed mpich-3.04 on a computer powered by linux. Everything seems to be OK. The example in f.90 runs correctecly without error mesages. When I try my own trial code (simply a send and a recv call) I get the following error mesage :

Assertion failed in file src/mpid/ch3/src/mpid_vc.c at line 140: MPIU_Object_get_ref((vcrt)) >= 0

The process which aborts is the one on which I use the recv instruction.

I have use mpiexec -n <n> ./trial.out

I have tried with ifort and gfortran compilers with the same result.

I have made the same install on another computer also powered by Linux with exactly the same result.

The 2 Linux are different: Fedora 19 and RedHat Enterprise 6.2

Thank you for your help. VR

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