Message boards : Number crunching : Mac/PowerPC optimalizations?
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Cureseekers~Wilko Send message Joined: 6 Nov 05 Posts: 1 Credit: 9,742 RAC: 0 |
Will there be optimalizations for PowerPC CPUs? It appears the AltiVec engine isn't used by Rosetta, which -if used- could speed up crunching a *lot*. |
David E K Volunteer moderator Project administrator Project developer Project scientist Send message Joined: 1 Jul 05 Posts: 1018 Credit: 4,334,829 RAC: 0 |
I'll be looking into this. We had issues compiling rosetta to support 10.3.9 and up and the solution prevents us from being able to use altivec. It's a trade off, either we support 10.3.9 w/o being able to add altivec or only support 10.4, and since there are still a lot of 10.3.9 users, we decided on the former. |
Tern Send message Joined: 25 Oct 05 Posts: 576 Credit: 4,695,362 RAC: 7 |
I'll be looking into this. We had issues compiling rosetta to support 10.3.9 and up and the solution prevents us from being able to use altivec. It's a trade off, either we support 10.3.9 w/o being able to add altivec or only support 10.4, and since there are still a lot of 10.3.9 users, we decided on the former. See the Team MacNN boards for how they got around this on their SETI client - the libraries changed between 10.3.9 and 10.4, but you can compile under 10.4 for either, it just takes an extra step. |
David Baker Volunteer moderator Project administrator Project developer Project scientist Send message Joined: 17 Sep 05 Posts: 705 Credit: 559,847 RAC: 0 |
We will be distributing the code really soon--it would be great if people could try Bill's suggestion out and let us all know how it goes! |
Message boards :
Number crunching :
Mac/PowerPC optimalizations?
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