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CUDA-x86.

Details on -Msmart

 
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PeteBradley



Joined: 10 Apr 2006
Posts: 11

PostPosted: Mon Apr 10, 2006 10:51 am    Post subject: Details on -Msmart Reply with quote

Can someone provide a little more detail on what -Msmart does? Any details on what kinds of constructs benefit? If used, does -Msmart result in an image that will execute on Intel (slower would be ok)?

Thanks,

Pete
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mkcolg



Joined: 30 Jun 2004
Posts: 6134
Location: The Portland Group Inc.

PostPosted: Mon Apr 10, 2006 2:58 pm    Post subject: Reply with quote

Hi Pete,

"-Msmart" causes the driver to invoke a post pass assembly instruction scheduler called pgsmart. It doesn't effect any specific code construct, rather it's looking for opportunities to minimize instruction latency.

Although the documentation says that "-Msmart" is "AMD64-specific", it is also invoked on EM64T. EM64T had not been released when the pgsmart utility was first created and I think the note meant that it's 64-bit specific not just AMD specific. I'll ask that the documentation be updated.

Thanks,
Mat
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