On Mon, Jun 21, 2021 at 09:46:30AM -0400, Joe Landman wrote: > On 6/21/21 9:20 AM, Jonathan Engwall wrote: > > I have followed this thinking "square peg, round hole." > > You have got it again, Joe. Compilers are your problem. > > > Erp ... did I mess up again? > > Here's where awesome compiler support would help. FWIW, gcc isn't that > great a compiler. Its not performance minded for HPC. Its a reasonable > general purpose standards compliant (for some subset of standards) > compilation system. LLVM is IMO a better compiler system, and its > clang/flang are developing nicely, albeit still not really HPC focused. > Then you have variants built on that. Like the Cray compiler, Nvidia > compiler and AMD compiler. These are HPC focused, and actually do quite well > with some codes (though the AMD version lags the Cray and Nvidia compilers). > You've got the Intel compiler, which would be a good general compiler if it > wasn't more of a marketing vehicle for Intel processors and their features > (hey you got an AMD chip? you will take the slowest code path even if you > support the features needed for the high performance code path). > > Maybe, someday, we'll get a great HPC compiler for C/Fortran. > The problem is that, maybe, the HPC market is still not _quite_ big enough to merit a dedicated set of compilers and is diverse enough in its problem sets that we still need a dozen or more specialist use cases to work well.
You would think there would be a cross-over point where massively parallel scalable cloud infrastructure wold intersect with HPC but that doesn't seem to be happening. Parallelisation is the great bugbear anyway. Most of the experts I know on all of this are the regulars on this list: paging Greg Lindahl ... All the best, Andy Cater > > -- > Joe Landman > e: joe.land...@gmail.com > t: @hpcjoe > w: https://scalability.org > g: https://github.com/joelandman > l: https://www.linkedin.com/in/joelandman > > _______________________________________________ > Beowulf mailing list, Beowulf@beowulf.org sponsored by Penguin Computing > To change your subscription (digest mode or unsubscribe) visit > https://beowulf.org/cgi-bin/mailman/listinfo/beowulf _______________________________________________ Beowulf mailing list, Beowulf@beowulf.org sponsored by Penguin Computing To change your subscription (digest mode or unsubscribe) visit https://beowulf.org/cgi-bin/mailman/listinfo/beowulf
