Re: [Tutor] No speedup in

2007-04-21 Thread Kent Johnson
Eike Welk wrote: > There is some project to simplify parallel computing with Python > called IPython1, which is part of the IPython project: > http://ipython.scipy.org/moin/IPython1 See also Parallel Python (and others on the links page): http://www.parallelpython.com/ Kent _

Re: [Tutor] No speedup in

2007-04-21 Thread Andreas Kostyrka
* Thanos Panousis <[EMAIL PROTECTED]> [070421 19:56]: > You cannot get around the GIL in python. > > Maybe you could try passing chunks of your matrix that are copies of > the submatrises you want to multiply using threads. This way it will > be different objects, thus no GILI could be awfully

Re: [Tutor] No speedup in

2007-04-21 Thread Eike Welk
Hello Ying Wai! If you are using NumPy you should ask your question on the NumPy mailing list: http://projects.scipy.org/mailman/listinfo/numpy-discussion There is some project to simplify parallel computing with Python called IPython1, which is part of the IPython project: http://ipython.scip

Re: [Tutor] No speedup in

2007-04-21 Thread Thanos Panousis
You cannot get around the GIL in python. Maybe you could try passing chunks of your matrix that are copies of the submatrises you want to multiply using threads. This way it will be different objects, thus no GILI could be awfully wrong though, I am a beginner in threads as well. On 4/21/07,

[Tutor] No speedup in

2007-04-21 Thread FAN Ying Wai
Hi, I am using Python Thread library for my parallel processing course project. I am doing matrix convolution on a multi-processor machine. I just found out that no speed-up is obtained with threading. It is probably because of something called GIL in Python. How can I get around that GIL and g