Re: speed up a numpy code with huge array

2010-05-26 Thread bobicanprogram
On May 26, 7:43 am, Alexzive wrote: > thank you all for the tips. > I 'll try them soon. > > I also notice another bottleneck, when python tries to access some > array data stored in the odb files (---> in text below), even before > starting the algoritm: > > ### > EPS_nodes = range(len(frames)) >

Re: speed up a numpy code with huge array

2010-05-26 Thread Alexzive
sorry it was just bullshit what I wrote about the second bottleneck, it seemed to hang up but it was just me forgetting to double-enter during debugging after "for cycle". On May 26, 1:43 pm, Alexzive wrote: > thank you all for the tips. > I 'll try them soon. > > I also notice another bottlenec

Re: speed up a numpy code with huge array

2010-05-26 Thread Alexzive
thank you all for the tips. I 'll try them soon. I also notice another bottleneck, when python tries to access some array data stored in the odb files (---> in text below), even before starting the algoritm: ### EPS_nodes = range(len(frames)) for f in frames: ... sum = 0 --->UN = F[f].fie

Re: speed up a numpy code with huge array

2010-05-25 Thread Stefan Behnel
Alexzive, 25.05.2010 21:05: is there a way to improve the performance of the attached code ? it takes about 5 h on a dual-core (using only one core) when len(V) ~1MIL. V is an array which is supposed to store all the volumes of tetrahedral elements of a grid whose coord. are stored in NN (accesse

Re: speed up a numpy code with huge array

2010-05-25 Thread draco parvus
On May 26, 7:05 am, Alexzive wrote: > Hello Pythonguys! > > is there a way to improve the performance of the attached code ? it > takes about 5 h on a dual-core (using only one core) when len(V) > ~1MIL. V is an array which is supposed to store all the volumes of > tetrahedral elements of a grid w

Re: speed up a numpy code with huge array

2010-05-25 Thread Vincent Davis
It makes me think you are filling you available memory and using the disk as cache. If this happens things will get real slow. You might take a look at your system resources when this is running. I don't have much else to offer and could be completely wrong. Vincent On Tue, May 25, 2010 at 1:05 P

speed up a numpy code with huge array

2010-05-25 Thread Alexzive
Hello Pythonguys! is there a way to improve the performance of the attached code ? it takes about 5 h on a dual-core (using only one core) when len(V) ~1MIL. V is an array which is supposed to store all the volumes of tetrahedral elements of a grid whose coord. are stored in NN (accessed trough th