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chudSetPMCModes

Subject: chudSetPMCModes
From: "P. Aaron Lott" <email@hidden>
Date: Fri, 15 Oct 2004 16:35:58 -0400
Delivered-to: email@hidden
Delivered-to: email@hidden

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];


email@hidden
http://www.lcv.umd.edu/~palott
LCV:    CSS 4364A 301.405.4865
Office: CSS 4364E 301.405.8735
Fax:     301.314.0827

P. Aaron Lott
4364E Computer and Space Sciences Building
University of Maryland
College Park, MD 20742-4015


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