[Beowulf] OT: PathScale Performance

["C. Bergström"]

On 05/13/13 12:19 AM, Vincent Diepeveen wrote:
> Maybe that he, working for pathscale, isn't happy that i noised here 
> in this list one day that for none of my applications pathscale is 
> faster than any of the other big compilers,
> gcc, intel c++ and visual c++?
rude flamebait, but I'll bite this time
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We've been heavily focusing on GPGPU support and performance
http://www.pathscale.com/images/chart_1.png

Those OpenACC benchmarks are available at
https://github.com/pathscale/KernelGen---Performance-Test-Suite/

We recently worked with a researcher who submitted a paper to SC13 that 
included similar results. We were the fastest on a majority of 
benchmarks for that paper. (The paper intentionally only included kernel 
execution times as the research involved a JIT compiler)
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C++ in the past (even now??) has not been the most used language for our 
customers or in HPC in general. C++ is growing in HPC popularity and 
very important to us though. It's not an easy language and addressing 
the issues Vincent may have run into is probably on our long term 
roadmap. (We've made a lot of progress with c++ since switching to a 
clang based fe though and it may be fixed)