Yes, you are right, sorry for disturbing. On 07/10/2013 03:39 PM, Wesley Bland wrote:

The value of previous for rank 0 in your code is -1. MPICH is complaining because all of the requests to receive a message from -1 are still pending when you try to finalize. You need to make sure that you are receiving from valid ranks.

On Jul 10, 2013, at 7:50 AM, Thomas Ropars <[email protected]> wrote:

...

Yes sure. Here it is.

Thomas

On 07/10/2013 02:23 PM, Wesley Bland wrote:

...

Can you send us the smallest chunk of code that still exhibits this error?

Wesley

On Jul 10, 2013, at 6:54 AM, Thomas Ropars <[email protected]> wrote:

...

Hi all,

I get the following error when I try to run a simple application implementing a ring (each process sends to rank+1 and receives from rank-1). More precisely, the error occurs during the call to MPI_Finalize():

Assertion failed in file src/mpid/ch3/channels/nemesis/netmod/tcp/socksm.c at line 363: sc->pg_is_set internal ABORT - process 0

Does anybody else also noticed the same error?

Here are all the details about my test: - The error is generated with mpich-3.0.2 (but I noticed the exact same error with mpich-3.0.4) - I am using IPoIB for communication between nodes (The same thing happens over Ethernet) - The problem comes from TCP links. When all processes are on the same node, there is no error. As soon as one process is on a remote node, the failure occurs. - Note also that the failure does not occur if I run a more complex code (eg, a NAS benchmark).

Thomas Ropars _______________________________________________ discuss mailing list [email protected] To manage subscription options or unsubscribe: https://lists.mpich.org/mailman/listinfo/discuss

---

discuss mailing list [email protected] To manage subscription options or unsubscribe: https://lists.mpich.org/mailman/listinfo/discuss

<ring_clean.c>_______________________________________________ discuss mailing list [email protected] To manage subscription options or unsubscribe: https://lists.mpich.org/mailman/listinfo/discuss

---

discuss mailing list [email protected] To manage subscription options or unsubscribe: https://lists.mpich.org/mailman/listinfo/discuss