speedup

Link/UrlTags
Is the free lunch really over? Scalability in Many-core Systems: Part 1 in a Series [Knowledgebase]
  The traditional approach to application performance was to simply wait for the next generation of processor; most software developers did not need to invest in performance tuning, and enjoyed a ...

Posted: 2008-12-16 16:26:20 by Michael Wrinn (Intel)		speedup, теория, оценка масштабируемости ПО, закон Амдаля, прирост производительности, scaled speedup
what is the fastest way to compute 3x3 matrix inverse, 3x3 matrix multiplication? [Forums]
I perform tens of millions of computations of 3x3 matrix products. The code is already parallelized using a very efficient domain decomposition, so let's consider only single-thread code for now. (A ...

Posted: 2008-12-07 22:50:03 by nooj		ifort, matrix multiplication, matrix inverse, speedup
ifort: -ipo-jobs uses less than n jobs, gives no speedup [Forums]
When I use -ipo-jobs4, hoping to speed up the link phase of my program, I get no speedup.  top shows only one ifort process, requiring 100% of cpu on an 8 core machine with no other programs loading ...

Posted: 2008-12-08 16:38:16 by nooj		IPO, ifort, speedup, ipo-jobs, linking
Speeding up IPP FFT [Forums]
I'm benchmarking different implementations of 1D-FFT, and I've written a simple code for testing IPP:#include <iostream>#include <ipps.h>#include <sys/time.h>int main() { for (unsign ...

Posted: 2009-02-13 08:47:36 by fbasile		IPP, FFT, speedup, fftw3
speed up [Forums]
if i run a piece of code serially, and then parallelize it with TBB and run it... both times on a dual core system, what is the maximum speed-up that can be acheived?(or, is there any such "maximum sp ...

Posted: 2009-03-26 04:15:54 by sindhura		speedup
No Speedup Using dsyr on Core 2 Duo Running Linux [Forums]
Hi,My code is along the lines of the following.  The dimensions are A(500,500) x(500)for ( int i = 0 ; i < 100000 ; i++) cblas_dsyr(...A,x,...)cout << A << endl ;I was hoping to get a ...

Posted: 2009-07-17 04:58:54 by Lawrence Austen		speedup