MPI Crashing

steinberg__elad — Wed, 06 Feb 2019 21:03:02 GMT

Hello,

I recently upgraded my os to Ubunto 18.04 and I have problems since.

Right now I reformatted my desktop and installed a fresh version of Ubuntu 18.04 and Installed intel C++ compiler and MPI library 2019 version 2.

When I run my codes, after a couple of hours and thousands of time steps I get the following error message:

Abort(873060101) on node 15 (rank 15 in comm 0): Fatal error in PMPI_Recv: Invalid communicator, error stack:
PMPI_Recv(171): MPI_Recv(buf=0x4b46a00, count=36912, MPI_DOUBLE, src=14, tag=25, MPI_COMM_WORLD, status=0x1) failed
PMPI_Recv(103): Invalid communicator
[cli_15]: readline failed

My code used to run fine on Ubuntu 16.04 (with older version of Intel's compiler and MPI), and also runs well on various big clusters.

My code uses Isend for sending information and Recv for reciving. Throughout my code I only use MPI_COMM_WORLD communicator and I never create a new one.

Can you pls help me find out what's wrong?

Thank you,

Elad

Do you use MPI_Probe/MPI

Yury_K_Intel — Fri, 08 Feb 2019 13:13:51 GMT

Do you use MPI_Probe/MPI_Iprobe in your code? If you do, it will be fixed in next release.

Yes I do. What is exactly the

steinberg__elad — Fri, 08 Feb 2019 15:29:39 GMT

Yes I do. What is exactly the issue with it?

topic MPI Crashing in Intel® MPI Library

MPI Crashing

Do you use MPI_Probe/MPI

Yes I do. What is exactly the