Re: [Felix-language] parallel programming support

2007-10-20 Thread skaller
On Thu, 2007-10-18 at 16:56 +1000, skaller wrote: > On Tue, 2007-10-16 at 17:40 +1000, skaller wrote: > > On Mon, 2007-10-15 at 03:26 +1000, skaller wrote: > > > Preliminary tests with Ubuntu-gutsy, gcc 4.2.1 with -fopenmp and some > > tutorial examples show openmp SLOWS down code going from 1 to

Re: [Felix-language] parallel programming support

2007-10-18 Thread skaller
On Tue, 2007-10-16 at 17:40 +1000, skaller wrote: > On Mon, 2007-10-15 at 03:26 +1000, skaller wrote: > Preliminary tests with Ubuntu-gutsy, gcc 4.2.1 with -fopenmp and some > tutorial examples show openmp SLOWS down code going from 1 to 2 threads > on a dual core AMD64x2 by a massive amount. The

Re: [Felix-language] parallel programming support

2007-10-16 Thread skaller
On Mon, 2007-10-15 at 03:26 +1000, skaller wrote: > I will be looking at parallel programming support based on openMP. > Gcc/g++ 4.2 now implements much of openMP. Preliminary tests with Ubuntu-gutsy, gcc 4.2.1 with -fopenmp and some tutorial examples show openmp SLOWS down code going from 1 to 2