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Re: cuda error

From: Jean-Noël Grad
Subject: Re: cuda error
Date: Fri, 1 Nov 2019 16:19:20 +0100
User-agent: Mozilla/5.0 (X11; Linux i686; rv:60.0) Gecko/20100101 Thunderbird/60.9.0

Hi Le,

I've never seen that error message before. Do you get a backtrace? Is the error reproducible when running the script without mpirun/mpiexec?


On 10/31/19 3:37 PM, Le Qiao wrote:
Hi all,

I'm having a Cuda error when running LB simulations on the ubuntu 18.04 LTS with Espresso dev, Cuda 10.1 and OpenMPI 2.1.1. This error will be gone every time when I reboot the computer but will still appear randomly later. The script is working fine on another machine. I'm not sure if it's a hardware or software issue now, Does anyone has any suggestions on this issue?

CUDA error: unknown error
MPI_ABORT was invoked on rank 0 in communicator MPI_COMMUNICATOR 4
with errorcode 1.

NOTE: invoking MPI_ABORT causes Open MPI to kill all MPI processes.
You may or may not see output from other processes, depending on
exactly when Open MPI kills them.


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