Loading...
Please wait, while we are loading the content...
Similar Documents
Memphis on an XT5: Pinpointing Memory Performance Problems on Cray Platforms
| Content Provider | Semantic Scholar |
|---|---|
| Author | McCurdy, Collin Vetter, Jeffrey S. Worley, Patrick H. Maxwell, Don |
| Copyright Year | 2011 |
| Abstract | Memphis is a tool that makes use of Instruction Based Sampling (IBS) hardware counters, available in recent AMD processors, to help pinpoint the sources of memory system performance problems. This paper describes our experiences porting Memphis to a test XT5 system at ORNL, including modifications required by Compute Node Linux to the kernel module that interfaces with IBS, and low impact modifications to the batch queue that enable the module's use at runtime. We also include a case study demonstrating the use of Memphis in an iterative process of finding problems and evaluating fixes in the CICE component of the production CESM climate code |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | https://cug.org/5-publications/proceedings_attendee_lists/CUG11CD/pages/1-program/final_program/Monday/04C-McCurdy-Slides.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |