Pawel Salek wrote:
> Hi,
>
> I have got a problem: I have tried to run old large Fortran code
> (compiled with fort -fast) and have noticed that it is unexpectedly slow.
> Closer investigation revealed that it spends more than 50% of CPU time in
> kernel. I suspect that the program does some kind of ugly floating point
> operations that require kernel support. The final numbers appear to be
> correct (compared against other architecture).
>
> Does anybody has ANY advice how to approach this problem? Is there any
> way to find out the offending part of code? I thought I could run gprof
> but I am not sure it show up in the output time spent in kernel..
>
You could try out IProbe (www.alphalinux.org/iprobe). It's one of the best
profilers for Alpha out there (right up with DCPI). That should help out
considerably, I'd think. HTH. :)
- Pete
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