And the same problem with different approach: I downloaded from http://www.mcs.anl.gov/research/projects/mpi/mpi-test/tsuite.html mpi2test.tar.gz, built it and try to run pingping test:

MPITEST_VERBOSE=1 MPICH_NEMESIS_NETMOD=mx mpiexec -f /tmp/m -n 2 /tests/pingping [stdout] Get new datatypes: send = MPI_INT, recv = MPI_INT Get new datatypes: send = MPI_INT, recv = MPI_INT Sending count = 1 of sendtype MPI_INT of total size 4 bytes Sending count = 1 of sendtype MPI_INT of total size 4 bytes Get new datatypes: send = MPI_DOUBLE, recv = MPI_DOUBLE Get new datatypes: send = MPI_DOUBLE, recv = MPI_DOUBLE Sending count = 1 of sendtype MPI_DOUBLE of total size 8 bytes Sending count = 1 of sendtype MPI_DOUBLE of total size 8 bytes Get new datatypes: send = MPI_FLOAT_INT, recv = MPI_FLOAT_INT Sending count = 1 of sendtype MPI_FLOAT_INT of total size 8 bytes Get new datatypes: send = MPI_FLOAT_INT, recv = MPI_FLOAT_INT Sending count = 1 of sendtype MPI_FLOAT_INT of total size 8 bytes Get new datatypes: send = dup of MPI_INT, recv = dup of MPI_INT Get new datatypes: send = dup of MPI_INT, recv = dup of MPI_INT Sending count = 1 of sendtype dup of MPI_INT of total size 4 bytes Sending count = 1 of sendtype dup of MPI_INT of total size 4 bytes Get new datatypes: send = int-vector, recv = MPI_INT Sending count = 1 of sendtype int-vector of total size 4 bytes Assertion failed in file ../src/mpid/ch3/channels/nemesis/netmod/mx/mx_send.c at line 435: n_iov > 0 internal ABORT - process 0 [/stdout]

22.11.2014, 18:39, "Kuleshov Aleksey" <[email protected]>:

Hello! Can you please help me with problem?

I'm working on custom myriexpress library and I'm using MX netmod in MPICH v.3.1.2. For testing purposes I built OSU Micro Benchmarks v3.8.

To run it on 7 nodes I execute test osu_alltoall as follows:

...

 MPICH_NEMESIS_NETMOD=mx mpiexec -f /tmp/m -n 7 /osu_alltoall

It passed successfully (I also tried it on 2, 3, 4, 5 and 6 nodes - everything is alright).

But now I want to run it on 8 nodes:

...

 MPICH_NEMESIS_NETMOD=mx mpiexec -f /tmp/m -n 8 /osu_alltoall

[stdout] # OSU MPI All-to-All Personalized Exchange Latency Test v3.8 # Size       Avg Latency(us) Assertion failed in file ../src/mpid/ch3/channels/nemesis/netmod/mx/mx_poll.c at line 784: n_iov > 0 Assertion failed in file ../src/mpid/ch3/channels/nemesis/netmod/mx/mx_poll.c at line 784: n_iov > 0 Assertion failed in file ../src/mpid/ch3/channels/nemesis/netmod/mx/mx_poll.c at line 784: n_iov > 0 Assertion failed in file ../src/mpid/ch3/channels/nemesis/netmod/mx/mx_poll.c at line 784: n_iov > 0 Assertion failed in file ../src/mpid/ch3/channels/nemesis/netmod/mx/mx_poll.c at line 784: n_iov > 0 Assertion failed in file ../src/mpid/ch3/channels/nemesis/netmod/mx/mx_poll.c at line 784: n_iov > 0 Assertion failed in file ../src/mpid/ch3/channels/nemesis/netmod/mx/mx_poll.c at line 784: n_iov > 0 Assertion failed in file ../src/mpid/ch3/channels/nemesis/netmod/mx/mx_poll.c at line 784: n_iov > 0 internal ABORT - process 4 internal ABORT - process 7 internal ABORT - process 2 internal ABORT - process 6 internal ABORT - process 3 internal ABORT - process 0 internal ABORT - process 5 internal ABORT - process 1 [/stdout]

So, what does these assertions mean? Is it something wrong with MX netmod? Or in myriexpress library? Or in test osu_alltoall itself?

BTW, osu_alltoall on 8 nodes passed successfully for TCP netmod. _______________________________________________ discuss mailing list     [email protected] To manage subscription options or unsubscribe: https://lists.mpich.org/mailman/listinfo/discuss

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