Subj : Should I use threads?
To   : comp.programming.threads
From : zipito
Date : Tue Jun 28 2005 09:53 pm

Hi All!

I'm trying to write own computational program for my physical task. 
There is some problem: TIME. When I finished it (the first edition), it 
takes something about 22 minutes for every integral, and I have about 
10000 of such type integrals to compute. Then I've changed some code in 
algorithm for computing this integrals, Now program takes only 2-3 
seconds. :) But thats not good for me! Program needs about a year to 
complete computation.

I think, I will increase the computational speed, if I'll try to use 
some parallel computations: I want to do my program computing at the 
same time 5-6 integrals (or even more, if it's able). Can this be done 
on one-processor running mashine. If yes, can you tell me: should I use 
threads to do this? Or there is some different abilities?

I'm using standart c++ library. For this moment I'm writting my program 
for Windows. Once I've tried to recompile my code for linux, and it had 
speeded up :). So the main goal is to use STANDART C++ Library, or 
something, that is good-portable for linux. (At the end of writting, 
this program, probably, will be running on multiprocessor machine, but 
for debuging and testing, I will be able to use only my one 
single-processor computer)

I will appriciate every suggestion.

Ilya.

P.S.: Sorry about my english.

.