VTune empty Report issue with a Gromacs workload

Lance_A_Intel — Wed, 13 May 2020 20:40:43 GMT

I have encountered an issue with VTune 2021.1-beta06 on DevCloud where it completes profiling a workload with a specific dataset, but when I try to create reports they are empty. If I run the workload with a different, smaller dataset the reports work fine.

-operating system: Ubuntu 18.04.4 LTS and gcc (Ubuntu 7.4.0-1ubuntu1~18.04.1) 7.4.0

Steps to recreate:

1. Download Gromacs: wget http://ftp.gromacs.org/pub/gromacs/gromacs-2020.2.tar.gz

2. Follow the installation steps specified in the following guide (cmake step shown below): http://manual.gromacs.org/2020.2/install-guide/index.html

cmake .. -DGMX_BUILD_OWN_FFTW=ON -DCMAKE_INSTALL_PREFIX= <path to local install dir> ( e.g. /home/u42144/software/gromacs)

3. Download the dataset then extract: wget https://repository.prace-ri.eu/ueabs/GROMACS/1.2/GROMACS_TestCaseA.tar.gz

4. Run VTune with the workload: vtune -collect hotspots -r v-hotspots -- gmx mdrun -s ion_channel.tpr

5. Create hotspots report: vtune -report hotspots -results-dir v-hotspots

example hotspots report output:

Function CPU Time CPU Time:Effective Time CPU Time:Effective Time:Idle CPU Time:Effective Time:Poor CPU Time:Effective Time:Ok CPU Time:Effective Time:Ideal CPU Time:Effective Time:Over CPU Time:Spin Time CPU Time:Spin Time:Imbalance or Serial Spinning CPU Time:Spin Time:Lock Contention CPU Time:Spin Time:Other CPU Time:Overhead Time CPU Time:Overhead Time:Creation CPU Time:Overhead Time:Scheduling CPU Time:Overhead Time:Reduction CPU Time:Overhead Time:Atomics CPU Time:Overhead Time:Other Module Function (Full) Source File Start Address
-------- -------- ----------------------- ---------------------------- ---------------------------- -------------------------- ----------------------------- ---------------------------- ------------------ ----------------------------------------------- ---------------------------------- ------------------------ ---------------------- ------------------------------- --------------------------------- -------------------------------- ------------------------------ ---------------------------- ------ --------------- ----------- -------------

Hi Lance,

ChithraJ_Intel — Thu, 14 May 2020 13:24:51 GMT

Hi Lance,

Thanks for reaching out to us.
We tried to follow the steps shared by you in Devcloud and generated the hotspots result. We tried to generate a hotspots report in .txt format using the below command. Could you please try this and check whether you are able to get the report as required.

Command to generate report in .txt format:
vtune -report hotspots -result-dir v-hotspots -report-output <path to save report>/MyReport.txt

Hello,

Lance_A_Intel — Thu, 14 May 2020 22:50:51 GMT

Hello,

Thank you for your assistance.

I have it working now. I believe the issue was that I was no longer in Interactive mode on the DevCloud system, so when I tried to create the VTune reports it would not work from the login node.

This post can be closed

Hi Lance,

ChithraJ_Intel — Fri, 15 May 2020 07:48:38 GMT

Hi Lance,

Thanks for the confirmation. We are closing the case. Please feel free to raise a new thread if you have any further issues.

topic VTune empty Report issue with a Gromacs workload in Analyzers

VTune empty Report issue with a Gromacs workload

Hi Lance,

Hello,

Hi Lance,