[mvapich-discuss] MVAPICH2-GDR LD_PRELOAD Bug with Tensorflow

[Herten, Andreas]

Dear all,

On our HPC system JUWELS we see another bug with MVAPICH 2.3.3-GDR.
As soon as MVAPICH2 is introduced to the environment (and with it, the recommended LD_PRELOAD variable), even a simple Tensorflow program seg faults.

Please see here for some more description:
	https://urldefense.com/v3/__https://gist.github.com/AndiH/4f29c4b2d1a21a115580086223bbb2d5__;!!KGKeukY!jse9OyOO7y0ltPRKrlm4EbfQVrgU5ITFktCRnXN1mI7-jL0aXl8Sct_oot3rJXMcw0ivgvpf3zYYf8Q$  <https://urldefense.com/v3/__https://gist.github.com/AndiH/4f29c4b2d1a21a115580086223bbb2d5__;!!KGKeukY!jse9OyOO7y0ltPRKrlm4EbfQVrgU5ITFktCRnXN1mI7-jL0aXl8Sct_oot3rJXMcw0ivgvpf3zYYf8Q$ >

What do you recommend to debug this further? Any ideas?

Best,

-Andreas

—
NVIDIA Application Lab // POWER Acceleration and Design Centre
Jülich Supercomputing Centre
Forschungszentrum Jülich, Germany
+49 2461 61 1825

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