topic Re: Two nodes linpack test error！ in Intel® MPI Library

Two nodes linpack test error！

liuzhaoqiang — Fri, 24 Mar 2023 09:15:49 GMT

The following is my error reporting information. Please help me！！

Thanks！

I've configured ssh-free login and set up nfs file system, using Intel oneapi.

And the firewall is turned off.

CPU：2*E5 2620 v4 per node；1Gb Ethernet；OS：Ubuntu20.04.6-live-server.amd64.iso

My guess is that it's a compatibility issue, who can tell me the real reason！

Re: Two nodes linpack test error！

AishwaryaCV_Intel — Mon, 27 Mar 2023 10:03:23 GMT

Hello,

Thank you for reaching out to the Intel communities.

Could you please provide us Intel oneAPI version you are using?

I am successfully able to run the linpack test with FI_PROVIDER= mlx Can find the attached screenshot of linpack test in linpack_text1.png and linpack_test2.png

Could you please check and let us know the FI_PROVIDER you are using?

To find and check for provider can follow the link:

https://www.intel.com/content/www/us/en/developer/articles/technical/mpi-library-2019-over-libfabric.html

Thanks And Regards,

Aishwarya

Re: Two nodes linpack test error！

liuzhaoqiang — Tue, 28 Mar 2023 01:56:37 GMT

Hi Aishwarya,

Thank you for answer me.

I'm using Intel oneapi version is '2022.3.1'.

I'm using FI_PROVIDER=tcp;ofi_rxm

Thanks!

Re:Two nodes linpack test error！

AishwaryaCV_Intel — Tue, 28 Mar 2023 11:23:37 GMT

Hello,

Thanks for providing the requested information.

<<< My guess is that it's a compatibility issue, who can tell me the real reason！

Could you please elaborate on this statement you mentioned? What exactly you meant by compatibility issue?

Thanks And Regards,

Aishwarya

Re: Two nodes linpack test error！

liuzhaoqiang — Wed, 29 Mar 2023 00:49:24 GMT

I'm sorry that my description may have misunderstood you. This is just my own guess, because the cpu I use is already very old, but intel OneAPI is very new, so I have this idea.

Re: Two nodes linpack test error！

AishwaryaCV_Intel — Thu, 30 Mar 2023 05:19:45 GMT

Hi,

Thanks for the clarification.

Could you please upgrade to the 2023 version of Intel oneAPI and try running the basic IMB benchmark using the below provided command , without specifying any other environment flags.

mpirun -np 4 -ppn 2 IMB-MPI1

Please let us know if you are able to run successfully.

Thanks And Regards,

Aishwarya

Re:Two nodes linpack test error！

AishwaryaCV_Intel — Thu, 06 Apr 2023 09:18:59 GMT

Hi,

We haven't heard back from you, Could you please let us know if you are able to run basic IMB benchmark successfully by upgrading to 2023 as mentioned above?.

Thanks & Regards,

Aishwarya

Re: Two nodes linpack test error！

AishwaryaCV_Intel — Fri, 28 Apr 2023 07:04:39 GMT

Hi,

We have not heard back from you. If you need any additional information, please post a new question as this thread will no longer be monitored by Intel.

Thanks and Regards,

Aishwarya