If you find any problem or any feature missing that you think should be present, and it is not listed here, please let us know by reporting as a "Problem on computing" through the ECMWF Support Portal mentioning "Atos" in the summary.

Atos HPCF is not operational platform yet, and many features or elements may be gradually added as complete setup is finalised. Here is a list of the known limitations, missing features and issues.

Missing Features

End of job information

A basic report is provided at the end of the job with information about its execution.

[ECMWF-INFO -ecepilog] --------------------------------------------------------------------------------------------- 
[ECMWF-INFO -ecepilog] This is the ECMWF job Epilogue
[ECMWF-INFO -ecepilog] +++ Please report issues using the Support portal +++
[ECMWF-INFO -ecepilog] +++ https://support.ecmwf.int                     +++
[ECMWF-INFO -ecepilog] ---------------------------------------------------------------------------------------------
[ECMWF-INFO -ecepilog]
[ECMWF-INFO -ecepilog] Run at 2021-09-28T06:21:25 on aa
[ECMWF-INFO -ecepilog] Job Name                  : eci
[ECMWF-INFO -ecepilog] Job ID                    : 1009559
[ECMWF-INFO -ecepilog] Submitted                 : 2021-09-28T06:05:23
[ECMWF-INFO -ecepilog] Dispatched                : 2021-09-28T06:05:23
[ECMWF-INFO -ecepilog] Completed                 : 2021-09-28T06:21:25
[ECMWF-INFO -ecepilog] Waiting in the queue      : 0.0
[ECMWF-INFO -ecepilog] Runtime                   : 962
[ECMWF-INFO -ecepilog] Exit Code                 : 0:0
[ECMWF-INFO -ecepilog] State                     : COMPLETED
[ECMWF-INFO -ecepilog] Account                   : myaccount
[ECMWF-INFO -ecepilog] Queue                     : nf
[ECMWF-INFO -ecepilog] Owner                     : user
[ECMWF-INFO -ecepilog] STDOUT                    : slurm-1009559.out
[ECMWF-INFO -ecepilog] STDERR                    : slurm-1009559.out
[ECMWF-INFO -ecepilog] Nodes                     : 1
[ECMWF-INFO -ecepilog] Logical CPUs              : 8
[ECMWF-INFO -ecepilog] SBU                       : 20.460 units
[ECMWF-INFO -ecepilog]

We are unable to provide a figure for the memory used at this time.

Alternatively, you may use sacct to get some of the statistics from SLURM once the job has finished.

Filesystems

The select/delete policy in SCRATCH has not been enforced yet.

See HPC2020: Filesystems for all the details.

Known issues

Intel MKL greater than 19.0.5: performance issues on AMD chips

Recent versions of MKL do not use the AVX2 kernels for certain operations on non-intel chips, such as the AMD Rome on our HPCF. The consequence is a significant drop in performance.