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PowerPC Linux?

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khanna:
Does anyone have any instructions on building SETI on PowerPC Linux, with AltiVec support? I am able to build without AltiVec, but when I enable it, I get into trouble because the source expects to be on Mac OS X.

Thanks.

Simon:
Hi khanna,

we're using ICC/IPP by Intel to compile our optimized apps. Because of this, PPC-Linux is not really supported from our side, because Intel tools work only on Intel CPUs, not IBM/Motorola ones ;)

Sorry, I can't help you.

Regards,
Simon.

khanna:
Ok, thanks. Maybe you can answer a more general question for me about the SETI source code. How much time is spent on calculating FFTs in the code? Is that the most computationally intensive part? Or are there other parts of the code that are a bottleneck?

Simon:
There are other parts, but FFTs are what most time is spent on.

Other large time consumers are pulse folding, PowerSpectrum, chirping and some summing/averaging functions.

HTH,
Simon.

khanna:
Thanks. I need to run some tests, both for benchmarking and validity. Can you suggest any short but relevant workunits? I'm not quite patient enough to wait for several hours every time I made a minor change and want to test the outcome.

Thanks.

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