Re: [Beowulf] Network Filesystems performance

2007-11-18 Thread Joe Landman
Ashley Pittman wrote: On Sat, 2007-11-10 at 18:33 +1100, Chris Samuel wrote: On Fri, 24 Aug 2007, Michael Will wrote: The first advise is to stay away from redhat for file servers since they have some bursty I/O bugs and don't support XFS. We've run through Fedora (OK, but release cycle too qui

RE: [Beowulf] Quad-Core Parallelism

2007-11-18 Thread Kozin, I (Igor)
While it is true that MKL is threaded not all the BLAS subroutines are. Unfortunately the manual does not explicitely explain the threadedness. Furthermore, funny enough, at least some ACML subroutines are quicker than the MKL ones. Admitedly the difference became smaller with the release of MKL

Re: [Beowulf] Network Filesystems performance

2007-11-18 Thread Ashley Pittman
On Sat, 2007-11-10 at 18:33 +1100, Chris Samuel wrote: > On Fri, 24 Aug 2007, Michael Will wrote: > > The first advise is to stay away from redhat for file servers since > > they have some bursty I/O bugs and don't support XFS. > > We've run through Fedora (OK, but release cycle too quick), Ubunt

Re: [Beowulf] Quad-Core Parallelism

2007-11-18 Thread James Cownie
On 16 Nov 2007, at 15:40, Donald Shillady wrote: The question is whether ESSL or Parallel-ESSL is needed to do true parallel computing on a Quad-core chip? Basically I would like to know if anyone is working on making a Quad-core CPU parallel (preferably f77 or f99) under RedHat LINUX?