USE Vtune to Analysis of the MPI ，but it always pop up error

guorui · ‎07-24-2022

I use Vtune to analyze MPI issue， I have install it at openstack instance，but it pop up can run

at Virtual machine，How can I fix it ？

1. I_MPI_DEBUG=5.

I tried two things,

1) export I_MPI_DEBUG = 5

mpirun -np 4 aps ~/binary/vasp_std_2022

2) mpirun -genv I_MPI_DEBUG=5 -np 4 aps ~/binary/vasp_std_2022

They all get the same error:

vtune: Warning: Memory bandwidth collection is not supported inside a virtual machine since uncore events cannot be collected. For full functionality, consider using a bare-metal environment.

vtune: Warning: CPU frequency data collection is not supported on this platform.

vtune: Error: amplxe-perf:

Using CPUID GenuineIntel-6-6A-6

both cgroup and no-aggregation modes only available in system-wide mode

Usage: perf stat [] []

-G, --cgroup monitor event in cgroup name only

-A, --no-aggr disable CPU count aggregation

-a, --all-cpus system-wide collection from all CPUs

--for-each-cgroup expand events for each cgroup

vtune: Error: Preliminary validation of the requested events failed.

aps Error: Cannot run the collection.

aps Error: Cannot process configs directory.

ShyamS_Intel · ‎07-26-2022

Hi,

Thank you for posting in Intel communities.

From the commands you provided, we could observe that you are using 'aps' while profiling. While using aps command you need to use some parameters like collection-mode, please refer the below screenshot.

We tried reproducing your issue and below command works fine. Please try the below commands and let us know if the issue still persists.

If this resolves your issue, make sure to accept this as a solution. This would help others with similar issue. Thank you!

Regards,

Shyam Sundar

guorui · ‎07-29-2022

Dear Shyam Sundar

Thank you very much for your help. Now use mpirun -genV I_MPI_DEBUG= 5-NP 4 APS -- collect-mode = OMp./ OBj

I'm ready to grab the log, If there are any more questions, I will keep in touch with you. Thank you.

ShyamS_Intel · ‎08-01-2022

Hi,

Glad to know that your issue is resolved. If you need any additional information, please post a new question as this thread will no longer be monitored by Intel

Thanks,

Shyam Sundar