Hello,
I am experimenting with IBS on AMD Shanghai processor.
Currently my code is based on the IBS example in libpfm3.9. I only capture
the load operation, and play with the sampling period.
When using small sampling period, the number of captured data is larger, but
the distribution is not very good. The captured data is concentrated on a
particular place in the code.
I am assuming that the code in the example is using cycle mode.
As far as I know AMD Shanghai supports IBS op with dispatch mode, which I
assume is better than cycle mode.2.766
I am wondering if anybody knows how to select dispatch mode using libpfm3
and whether it would give better result.
Regards,
Besar
HPCTools Lab
University of Houston
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