Hi,
Last fall I wrote a program using chudSetPMCModes to allow me to do a
basic clock cycle count. The basic outline is listed below. The
problem is, this code is giving me warnings when I try to call
chudSetPMCModes. I do this in 3 places:
chudSetPMCModes(chudCPU1Dev, useArray);
chudSetPMCModes(chudMCDev, useArray);
chudSetPMCModes(chudOSDev, useArray);
where useArray is defined as
int useArray[8] = {chudCounter, chudCounter, chudUnused, chudUnused,
chudUnused, chudUnused, chudUnused, chudUnused};
I get the warnings:
call_combine.c: In function `call_combine':
call_combine.c:63: warning: passing arg 2 of `chudSetPMCModes' from
incompatible pointer type
call_combine.c:67: warning: passing arg 2 of `chudSetPMCModes' from
incompatible pointer type
call_combine.c:68: warning: passing arg 2 of `chudSetPMCModes' from
incompatible pointer type
The code compiles and runs on my G4 Ti powerbook, and G3 ibook. But
fails to compile on G5 machines after giving the same warnings. As I
recall, when I wrote this I didn't receive these error messages when I
compiled. Has the chudSetPMCModes function changed inside of CHUD
since last fall? Where can I go about finding out about this function
so I can get my code working on G5's?
Thanks,
Aaron
chudInitialize();
chudAcquireSamplingFacility(CHUD_NONBLOCKING);
chudSetSamplingDevice(chudUserDev);
chudMarkCurrentThread(TRUE);
chudSetMarkFilter(chudCPU1Dev, chudFmodeOnlyMarked);
chudSetPrivilegeFilter(chudCPU1Dev, chudFmodeOnlyUser);
//set up the counters (on each CPU) to count cycles
chudSetPMCEvent(chudCPU1Dev, PMC_1, 1); //event #1 is CPU cycles
chudSetPMCEvent(chudCPU1Dev, PMC_2, 2); //event #2 is Instructions
chudMarkCurrentThread(TRUE);
chudSetMarkFilter(chudCPU1Dev, chudFmodeOnlyMarked);
chudSetPrivilegeFilter(chudCPU1Dev, chudFmodeOnlyUser);
chudSetPMCModes(chudCPU1Dev, useArray);
useArray[PMC_1]=chudUnused;
useArray[PMC_2]=chudUnused;
chudSetPMCModes(chudMCDev, useArray);
chudSetPMCModes(chudOSDev, useArray);
chudClearPMCs();
chudStartPMCs();
combine1(vec, dest ); //function I want to test the clock cycles of
chudStopPMCs();
pmcSampleCt[0]= chudGetSingleSamplePMCCounts(chudCPU1Dev, &npmcs[0]);
//Actual count - Latency of pmcSampleCt
count1=pmcSampleCt[0][PMC_1]-ctrlCycles[0];
icount1=pmcSampleCt[0][PMC_2]-ctrlInstrs[0];
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http://www.lcv.umd.edu/~palott
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P. Aaron Lott
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University of Maryland
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