Dataset Open Access
Profiling of RT-PICLS Code
Kelling, Jeffrey;
Juckeland, Guido
It was observed, that the RT-PICLS code ran by FWKT on the hypnos cluster was producing an unusual amount of system load, according to Ganglia metrics. Since this may point to an IO-problem in the code, this code was analyzed more closely.
RT-PICLS was run with additionally provided input data on 64 CPU cores (AMD Opteron) in a single node of the hypnos cluster. Score-P 4.0 with IO-tracing support was used for profiling and tracing of the application. A developer version of Vampir 9.2 [3] enabled graphical analysis of the traces.
Different file systems were evaluated for storing the output:
- bigdata: the high-performance file system of the cluster based on GPFS.
- nfs: a loop-mounted EXT4 image mounted to the current compute node via NFS.
- scr: the local scratch file-system of the compute node.
- tmpfs: a virtual filesystem, physically located in the main memory of the compute node.
The trace files that were used to compile the referenced report are collected in this upload.
| Name | Size | |
|---|---|---|
|
tracefile_rtpicls.zip
md5:32d7d9ba6f385200bd7ed10104e79322 |
7.4 GB | Download |
| All versions | This version | |
|---|---|---|
| Views | 1,566 | 1,566 |
| Downloads | 463 | 463 |
| Data volume | 3.4 TB | 3.4 TB |
| Unique views | 1,011 | 1,011 |
| Unique downloads | 113 | 113 |
- Publication date:
- April 25, 2018
- DOI:
-
- Keyword(s):
- Scorep Vampir Tracing Profiling
- Related identifiers:
- Identical to:
https://www.hzdr.de/publications/Publ-27417 - Supplement to:
urn:nbn:de:bsz:d120-qucosa-224404 - Communities:
- License (for files):
- Creative Commons Attribution 4.0 International