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gptl_papi.c
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/*
** $Id: gptl_papi.c,v 1.79 2011-03-28 20:55:19 rosinski Exp $
**
** Author: Jim Rosinski
**
** Contains routines which interface to PAPI library
*/
#include "private.h"
#include "gptl.h"
#ifdef HAVE_PAPI
#include <papi.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#if ( defined THREADED_OMP )
#include <omp.h>
#elif ( defined THREADED_PTHREADS )
#include <pthread.h>
#endif
/* Mapping of PAPI counters to short and long printed strings */
static const Entry papitable [] = {
{PAPI_L1_DCM, "PAPI_L1_DCM", "L1_DCM ", "L1_Dcache_miss ", "Level 1 data cache misses"},
{PAPI_L1_ICM, "PAPI_L1_ICM", "L1_ICM ", "L1_Icache_miss ", "Level 1 instruction cache misses"},
{PAPI_L2_DCM, "PAPI_L2_DCM", "L2_DCM ", "L2_Dcache_miss ", "Level 2 data cache misses"},
{PAPI_L2_ICM, "PAPI_L2_ICM", "L2_ICM ", "L2_Icache_miss ", "Level 2 instruction cache misses"},
{PAPI_L3_DCM, "PAPI_L3_DCM", "L3_DCM ", "L3_Dcache_miss ", "Level 3 data cache misses"},
{PAPI_L3_ICM, "PAPI_L3_ICM", "L3_ICM ", "L3_Icache_miss ", "Level 3 instruction cache misses"},
{PAPI_L1_TCM, "PAPI_L1_TCM", "L1_TCM ", "L1_cache_miss ", "Level 1 total cache misses"},
{PAPI_L2_TCM, "PAPI_L2_TCM", "L2_TCM ", "L2_cache_miss ", "Level 2 total cache misses"},
{PAPI_L3_TCM, "PAPI_L3_TCM", "L3_TCM ", "L3_cache_miss ", "Level 3 total cache misses"},
{PAPI_CA_SNP, "PAPI_CA_SNP", "CA_SNP ", "Snoops ", "Snoops "},
{PAPI_CA_SHR, "PAPI_CA_SHR", "CA_SHR ", "PAPI_CA_SHR ", "Request for shared cache line (SMP)"},
{PAPI_CA_CLN, "PAPI_CA_CLN", "CA_CLN ", "PAPI_CA_CLN ", "Request for clean cache line (SMP)"},
{PAPI_CA_INV, "PAPI_CA_INV", "CA_INV ", "PAPI_CA_INV ", "Request for cache line Invalidation (SMP)"},
{PAPI_CA_ITV, "PAPI_CA_ITV", "CA_ITV ", "PAPI_CA_ITV ", "Request for cache line Intervention (SMP)"},
{PAPI_L3_LDM, "PAPI_L3_LDM", "L3_LDM ", "L3_load_misses ", "Level 3 load misses"},
{PAPI_L3_STM, "PAPI_L3_STM", "L3_STM ", "L3_store_misses ", "Level 3 store misses"},
{PAPI_BRU_IDL,"PAPI_BRU_IDL","BRU_IDL ", "PAPI_BRU_IDL ", "Cycles branch units are idle"},
{PAPI_FXU_IDL,"PAPI_FXU_IDL","FXU_IDL ", "PAPI_FXU_IDL ", "Cycles integer units are idle"},
{PAPI_FPU_IDL,"PAPI_FPU_IDL","FPU_IDL ", "PAPI_FPU_IDL ", "Cycles floating point units are idle"},
{PAPI_LSU_IDL,"PAPI_LSU_IDL","LSU_IDL ", "PAPI_LSU_IDL ", "Cycles load/store units are idle"},
{PAPI_TLB_DM, "PAPI_TLB_DM" "TLB_DM ", "Data_TLB_misses ", "Data translation lookaside buffer misses"},
{PAPI_TLB_IM, "PAPI_TLB_IM", "TLB_IM ", "Inst_TLB_misses ", "Instr translation lookaside buffer misses"},
{PAPI_TLB_TL, "PAPI_TLB_TL", "TLB_TL ", "Tot_TLB_misses ", "Total translation lookaside buffer misses"},
{PAPI_L1_LDM, "PAPI_L1_LDM", "L1_LDM ", "L1_load_misses ", "Level 1 load misses"},
{PAPI_L1_STM, "PAPI_L1_STM", "L1_STM ", "L1_store_misses ", "Level 1 store misses"},
{PAPI_L2_LDM, "PAPI_L2_LDM", "L2_LDM ", "L2_load_misses ", "Level 2 load misses"},
{PAPI_L2_STM, "PAPI_L2_STM", "L2_STM ", "L2_store_misses ", "Level 2 store misses"},
{PAPI_BTAC_M, "PAPI_BTAC_M", "BTAC_M ", "BTAC_miss ", "BTAC miss"},
{PAPI_PRF_DM, "PAPI_PRF_DM", "PRF_DM ", "PAPI_PRF_DM ", "Prefetch data instruction caused a miss"},
{PAPI_L3_DCH, "PAPI_L3_DCH", "L3_DCH ", "L3_DCache_Hit ", "Level 3 Data Cache Hit"},
{PAPI_TLB_SD, "PAPI_TLB_SD", "TLB_SD ", "PAPI_TLB_SD ", "Xlation lookaside buffer shootdowns (SMP)"},
{PAPI_CSR_FAL,"PAPI_CSR_FAL","CSR_FAL ", "PAPI_CSR_FAL ", "Failed store conditional instructions"},
{PAPI_CSR_SUC,"PAPI_CSR_SUC","CSR_SUC ", "PAPI_CSR_SUC ", "Successful store conditional instructions"},
{PAPI_CSR_TOT,"PAPI_CSR_TOT","CSR_TOT ", "PAPI_CSR_TOT ", "Total store conditional instructions"},
{PAPI_MEM_SCY,"PAPI_MEM_SCY","MEM_SCY ", "Cyc_Stalled_Mem ", "Cycles Stalled Waiting for Memory Access"},
{PAPI_MEM_RCY,"PAPI_MEM_RCY","MEM_RCY ", "Cyc_Stalled_MemR", "Cycles Stalled Waiting for Memory Read"},
{PAPI_MEM_WCY,"PAPI_MEM_WCY","MEM_WCY ", "Cyc_Stalled_MemW", "Cycles Stalled Waiting for Memory Write"},
{PAPI_STL_ICY,"PAPI_STL_ICY","STL_ICY ", "Cyc_no_InstrIss ", "Cycles with No Instruction Issue"},
{PAPI_FUL_ICY,"PAPI_FUL_ICY","FUL_ICY ", "Cyc_Max_InstrIss", "Cycles with Maximum Instruction Issue"},
{PAPI_STL_CCY,"PAPI_STL_CCY","STL_CCY ", "Cyc_No_InstrComp", "Cycles with No Instruction Completion"},
{PAPI_FUL_CCY,"PAPI_FUL_CCY","FUL_CCY ", "Cyc_Max_InstComp", "Cycles with Maximum Instruction Completion"},
{PAPI_HW_INT, "PAPI_HW_INT", "HW_INT ", "HW_interrupts ", "Hardware interrupts"},
{PAPI_BR_UCN, "PAPI_BR_UCN", "BR_UCN ", "Uncond_br_instr ", "Unconditional branch instructions executed"},
{PAPI_BR_CN, "PAPI_BR_CN", "BR_CN ", "Cond_br_instr_ex", "Conditional branch instructions executed"},
{PAPI_BR_TKN, "PAPI_BR_TKN", "BR_TKN ", "Cond_br_instr_tk", "Conditional branch instructions taken"},
{PAPI_BR_NTK, "PAPI_BR_NTK", "BR_NTK ", "Cond_br_instrNtk", "Conditional branch instructions not taken"},
{PAPI_BR_MSP, "PAPI_BR_MSP", "BR_MSP ", "Cond_br_instrMPR", "Conditional branch instructions mispred"},
{PAPI_BR_PRC, "PAPI_BR_PRC", "BR_PRC ", "Cond_br_instrCPR", "Conditional branch instructions corr. pred"},
{PAPI_FMA_INS,"PAPI_FMA_INS","FMA_INS ", "FMA_instr_comp ", "FMA instructions completed"},
{PAPI_TOT_IIS,"PAPI_TOT_IIS","TOT_IIS ", "Total_instr_iss ", "Total instructions issued"},
{PAPI_TOT_INS,"PAPI_TOT_INS","TOT_INS ", "Total_instr_ex ", "Total instructions executed"},
{PAPI_INT_INS,"PAPI_INT_INS","INT_INS ", "Int_instr_ex ", "Integer instructions executed"},
{PAPI_FP_INS, "PAPI_FP_INS", "FP_INS ", "FP_instr_ex ", "Floating point instructions executed"},
{PAPI_LD_INS, "PAPI_LD_INS", "LD_INS ", "Load_instr_ex ", "Load instructions executed"},
{PAPI_SR_INS, "PAPI_SR_INS", "SR_INS ", "Store_instr_ex ", "Store instructions executed"},
{PAPI_BR_INS, "PAPI_BR_INS", "BR_INS ", "br_instr_ex ", "Total branch instructions executed"},
{PAPI_VEC_INS,"PAPI_VEC_INS","VEC_INS ", "Vec/SIMD_instrEx", "Vector/SIMD instructions executed"},
{PAPI_RES_STL,"PAPI_RES_STL","RES_STL ", "Cyc_proc_stalled", "Cycles processor is stalled on resource"},
{PAPI_FP_STAL,"PAPI_FP_STAL","FP_STAL ", "Cyc_any_FP_stall", "Cycles any FP units are stalled"},
{PAPI_TOT_CYC,"PAPI_TOT_CYC","TOT_CYC ", "Total_cycles ", "Total cycles"},
{PAPI_LST_INS,"PAPI_LST_INS","LST_INS ", "Tot_L/S_inst_ex ", "Total load/store inst. executed"},
{PAPI_SYC_INS,"PAPI_SYC_INS","SYC_INS ", "Sync._inst._ex ", "Sync. inst. executed"},
{PAPI_L1_DCH, "PAPI_L1_DCH", "L1_DCH ", "L1_D_Cache_Hit ", "L1 D Cache Hit"},
{PAPI_L2_DCH, "PAPI_L2_DCH", "L2_DCH ", "L2_D_Cache_Hit ", "L2 D Cache Hit"},
{PAPI_L1_DCA, "PAPI_L1_DCA", "L1_DCA ", "L1_D_Cache_Acc ", "L1 D Cache Access"},
{PAPI_L2_DCA, "PAPI_L2_DCA", "L2_DCA ", "L2_D_Cache_Acc ", "L2 D Cache Access"},
{PAPI_L3_DCA, "PAPI_L3_DCA", "L3_DCA ", "L3_D_Cache_Acc ", "L3 D Cache Access"},
{PAPI_L1_DCR, "PAPI_L1_DCR", "L1_DCR ", "L1_D_Cache_Read ", "L1 D Cache Read"},
{PAPI_L2_DCR, "PAPI_L2_DCR", "L2_DCR ", "L2_D_Cache_Read ", "L2 D Cache Read"},
{PAPI_L3_DCR, "PAPI_L3_DCR", "L3_DCR ", "L3_D_Cache_Read ", "L3 D Cache Read"},
{PAPI_L1_DCW, "PAPI_L1_DCW", "L1_DCW ", "L1_D_Cache_Write", "L1 D Cache Write"},
{PAPI_L2_DCW, "PAPI_L2_DCW", "L2_DCW ", "L2_D_Cache_Write", "L2 D Cache Write"},
{PAPI_L3_DCW, "PAPI_L3_DCW", "L3_DCW ", "L3_D_Cache_Write", "L3 D Cache Write"},
{PAPI_L1_ICH, "PAPI_L1_ICH", "L1_ICH ", "L1_I_cache_hits ", "L1 instruction cache hits"},
{PAPI_L2_ICH, "PAPI_L2_ICH", "L2_ICH ", "L2_I_cache_hits ", "L2 instruction cache hits"},
{PAPI_L3_ICH, "PAPI_L3_ICH", "L3_ICH ", "L3_I_cache_hits ", "L3 instruction cache hits"},
{PAPI_L1_ICA, "PAPI_L1_ICA", "L1_ICA ", "L1_I_cache_acc ", "L1 instruction cache accesses"},
{PAPI_L2_ICA, "PAPI_L2_ICA", "L2_ICA ", "L2_I_cache_acc ", "L2 instruction cache accesses"},
{PAPI_L3_ICA, "PAPI_L3_ICA", "L3_ICA ", "L3_I_cache_acc ", "L3 instruction cache accesses"},
{PAPI_L1_ICR, "PAPI_L1_ICR", "L1_ICR ", "L1_I_cache_reads", "L1 instruction cache reads"},
{PAPI_L2_ICR, "PAPI_L2_ICR", "L2_ICR ", "L2_I_cache_reads", "L2 instruction cache reads"},
{PAPI_L3_ICR, "PAPI_L3_ICR", "L3_ICR ", "L3_I_cache_reads", "L3 instruction cache reads"},
{PAPI_L1_ICW, "PAPI_L1_ICW", "L1_ICW ", "L1_I_cache_write", "L1 instruction cache writes"},
{PAPI_L2_ICW, "PAPI_L2_ICW", "L2_ICW ", "L2_I_cache_write", "L2 instruction cache writes"},
{PAPI_L3_ICW, "PAPI_L3_ICW", "L3_ICW ", "L3_I_cache_write", "L3 instruction cache writes"},
{PAPI_L1_TCH, "PAPI_L1_TCH", "L1_TCH ", "L1_cache_hits ", "L1 total cache hits"},
{PAPI_L2_TCH, "PAPI_L2_TCH", "L2_TCH ", "L2_cache_hits ", "L2 total cache hits"},
{PAPI_L3_TCH, "PAPI_L3_TCH", "L3_TCH ", "L3_cache_hits ", "L3 total cache hits"},
{PAPI_L1_TCA, "PAPI_L1_TCA", "L1_TCA ", "L1_cache_access ", "L1 total cache accesses"},
{PAPI_L2_TCA, "PAPI_L2_TCA", "L2_TCA ", "L2_cache_access ", "L2 total cache accesses"},
{PAPI_L3_TCA, "PAPI_L3_TCA", "L3_TCA ", "L3_cache_access ", "L3 total cache accesses"},
{PAPI_L1_TCR, "PAPI_L1_TCR", "L1_TCR ", "L1_cache_reads ", "L1 total cache reads"},
{PAPI_L2_TCR, "PAPI_L2_TCR", "L2_TCR ", "L2_cache_reads ", "L2 total cache reads"},
{PAPI_L3_TCR, "PAPI_L3_TCR", "L3_TCR ", "L3_cache_reads ", "L3 total cache reads"},
{PAPI_L1_TCW, "PAPI_L1_TCW", "L1_TCW ", "L1_cache_writes ", "L1 total cache writes"},
{PAPI_L2_TCW, "PAPI_L2_TCW", "L2_TCW ", "L2_cache_writes ", "L2 total cache writes"},
{PAPI_L3_TCW, "PAPI_L3_TCW", "L3_TCW ", "L3_cache_writes ", "L3 total cache writes"},
{PAPI_FML_INS,"PAPI_FML_INS","FML_INS ", "FM_ins ", "FM ins"},
{PAPI_FAD_INS,"PAPI_FAD_INS","FAD_INS ", "FA_ins ", "FA ins"},
{PAPI_FDV_INS,"PAPI_FDV_INS","FDV_INS ", "FD_ins ", "FD ins"},
{PAPI_FSQ_INS,"PAPI_FSQ_INS","FSQ_INS ", "FSq_ins ", "FSq ins"},
{PAPI_FNV_INS,"PAPI_FNV_INS","FNV_INS ", "Finv_ins ", "Finv ins"},
{PAPI_FP_OPS, "PAPI_FP_OPS", "FP_OPS ", "FP_ops_executed ", "Floating point operations executed"}
};
static const int npapientries = sizeof (papitable) / sizeof (Entry);
static int papieventlist[MAX_AUX]; /* list of PAPI events to be counted */
static Pr_event pr_event[MAX_AUX]; /* list of events (PAPI or derived) */
/* Derived events */
static const Entry derivedtable [] = {
{GPTL_IPC, "GPTL_IPC", "IPC ", "Instr_per_cycle ", "Instructions per cycle"},
{GPTL_CI, "GPTL_CI", "CI ", "Comp_Intensity ", "Computational intensity"},
{GPTL_FPC, "GPTL_FPC", "Flop/Cyc", "FP_Ops_per_cycle", "Floating point ops per cycle"},
{GPTL_FPI, "GPTL_FPI", "Flop/Ins", "FP_Ops_per_instr", "Floating point ops per instruction"},
{GPTL_LSTPI, "GPTL_LSTPI", "LST_frac", "LST_fraction ", "Load-store instruction fraction"},
{GPTL_DCMRT, "GPTL_DCMRT", "DCMISRAT", "L1_Miss_Rate ", "L1 miss rate (fraction)"},
{GPTL_LSTPDCM,"GPTL_LSTPDCM", "LSTPDCM ", "LST_per_L1_miss ", "Load-store instructions per L1 miss"},
{GPTL_L2MRT, "GPTL_L2MRT", "L2MISRAT", "L2_Miss_Rate ", "L2 miss rate (fraction)"},
{GPTL_LSTPL2M,"GPTL_LSTPL2M", "LSTPL2M ", "LST_per_L2_miss ", "Load-store instructions per L2 miss"},
{GPTL_L3MRT, "GPTL_L3MRT", "L3MISRAT", "L3_Miss_Rate ", "L3 read miss rate (fraction)"}
};
static const int nderivedentries = sizeof (derivedtable) / sizeof (Entry);
static int npapievents = 0; /* number of PAPI events: initialize to 0 */
static int nevents = 0; /* number of events: initialize to 0 */
static int *EventSet; /* list of events to be counted by PAPI */
static long_long **papicounters; /* counters returned from PAPI */
static const int BADCOUNT = -999999; /* Set counters to this when they are bad */
static bool is_multiplexed = false; /* whether multiplexed (always start false)*/
static bool narrowprint = true; /* only use 8 digits not 16 for counter prints */
static bool persec = true; /* print PAPI stats per second */
static bool enable_multiplexing = false; /* whether to try multiplexing */
static bool verbose = false; /* output verbosity */
/* Function prototypes */
static int canenable (int);
static int canenable2 (int, int);
static int papievent_is_enabled (int);
static int already_enabled (int);
static int enable (int);
static int getderivedidx (int);
/*
** GPTL_PAPIsetoption: enable or disable PAPI event defined by "counter". Called
** from GPTLsetoption. Since all events are off by default, val=false degenerates
** to a no-op. Coded this way to be consistent with the rest of GPTL
**
** Input args:
** counter: PAPI counter
** val: true or false for enable or disable
**
** Return value: 0 (success) or GPTLerror (failure)
*/
int GPTL_PAPIsetoption (const int counter, /* PAPI counter (or option) */
const int val) /* true or false for enable or disable */
{
int n; /* loop index */
int ret; /* return code */
int numidx; /* numerator index */
int idx; /* derived counter index */
char eventname[PAPI_MAX_STR_LEN]; /* returned from PAPI_event_code_to_name */
/*
** First, check for option which is not an actual counter
*/
switch (counter) {
case GPTLverbose:
/* don't printf here--that'd duplicate what's in gptl.c */
verbose = (bool) val;
return 0;
case GPTLmultiplex:
enable_multiplexing = (bool) val;
if (verbose)
printf ("GPTL_PAPIsetoption: boolean enable_multiplexing = %d\n", val);
return 0;
case GPTLnarrowprint:
narrowprint = (bool) val;
if (verbose)
printf ("GPTL_PAPIsetoption: boolean narrowprint = %d\n", val);
return 0;
case GPTLpersec:
persec = (bool) val;
if (verbose)
printf ("GPTL_PAPIsetoption: boolean persec = %d\n", val);
return 0;
default:
break;
}
/*
** If val is false, return an error if the event has already been enabled.
** Otherwise just warn that attempting to disable a PAPI-based event
** that has already been enabled doesn't work--for now it's just a no-op
*/
if (! val) {
if (already_enabled (counter))
return GPTLerror ("GPTL_PAPIsetoption: already enabled counter %d cannot be disabled\n",
counter);
else
if (verbose)
printf ("GPTL_PAPIsetoption: 'disable' %d currently is just a no-op\n", counter);
return 0;
}
/* If the event has already been enabled for printing, exit */
if (already_enabled (counter))
return GPTLerror ("GPTL_PAPIsetoption: counter %d has already been enabled\n",
counter);
/*
** Initialize PAPI if it hasn't already been done.
** From here on down we can assume the intent is to enable (not disable) an option
*/
if (GPTL_PAPIlibraryinit () < 0)
return GPTLerror ("GPTL_PAPIsetoption: PAPI library init error\n");
/* Ensure max nevents won't be exceeded */
if (nevents+1 > MAX_AUX)
return GPTLerror ("GPTL_PAPIsetoption: %d is too many events. Can be increased in private.h\n",
nevents+1);
/* Check derived events */
switch (counter) {
case GPTL_IPC:
if ( ! canenable2 (PAPI_TOT_INS, PAPI_TOT_CYC))
return GPTLerror ("GPTL_PAPIsetoption: GPTL_IPC unavailable\n");
idx = getderivedidx (GPTL_IPC);
pr_event[nevents].event = derivedtable[idx];
pr_event[nevents].numidx = enable (PAPI_TOT_INS);
pr_event[nevents].denomidx = enable (PAPI_TOT_CYC);
if (verbose)
printf ("GPTL_PAPIsetoption: enabling derived event %s = PAPI_TOT_INS / PAPI_TOT_CYC\n",
pr_event[nevents].event.namestr);
++nevents;
return 0;
case GPTL_CI:
idx = getderivedidx (GPTL_CI);
if (canenable2 (PAPI_FP_OPS, PAPI_LST_INS)) {
pr_event[nevents].event = derivedtable[idx];
pr_event[nevents].numidx = enable (PAPI_FP_OPS);
pr_event[nevents].denomidx = enable (PAPI_LST_INS);
if (verbose)
printf ("GPTL_PAPIsetoption: enabling derived event %s = PAPI_FP_OPS / PAPI_LST_INS\n",
pr_event[nevents].event.namestr);
} else if (canenable2 (PAPI_FP_OPS, PAPI_L1_DCA)) {
pr_event[nevents].event = derivedtable[idx];
pr_event[nevents].numidx = enable (PAPI_FP_OPS);
pr_event[nevents].denomidx = enable (PAPI_L1_DCA);
#ifdef DEBUG
printf ("GPTL_PAPIsetoption: pr_event %d is derived and will be PAPI event %d / %d\n",
nevents, pr_event[nevents].numidx, pr_event[nevents].denomidx);
#endif
if (verbose)
printf ("GPTL_PAPIsetoption: enabling derived event %s = PAPI_FP_OPS / PAPI_L1_DCA\n",
pr_event[nevents].event.namestr);
} else {
return GPTLerror ("GPTL_PAPIsetoption: GPTL_CI unavailable\n");
}
++nevents;
return 0;
case GPTL_FPC:
if ( ! canenable2 (PAPI_FP_OPS, PAPI_TOT_CYC))
return GPTLerror ("GPTL_PAPIsetoption: GPTL_FPC unavailable\n");
idx = getderivedidx (GPTL_FPC);
pr_event[nevents].event = derivedtable[idx];
pr_event[nevents].numidx = enable (PAPI_FP_OPS);
pr_event[nevents].denomidx = enable (PAPI_TOT_CYC);
if (verbose)
printf ("GPTL_PAPIsetoption: enabling derived event %s = PAPI_FP_OPS / PAPI_TOT_CYC\n",
pr_event[nevents].event.namestr);
++nevents;
return 0;
case GPTL_FPI:
if ( ! canenable2 (PAPI_FP_OPS, PAPI_TOT_INS))
return GPTLerror ("GPTL_PAPIsetoption: GPTL_FPI unavailable\n");
idx = getderivedidx (GPTL_FPI);
pr_event[nevents].event = derivedtable[idx];
pr_event[nevents].numidx = enable (PAPI_FP_OPS);
pr_event[nevents].denomidx = enable (PAPI_TOT_INS);
if (verbose)
printf ("GPTL_PAPIsetoption: enabling derived event %s = PAPI_FP_OPS / PAPI_TOT_INS\n",
pr_event[nevents].event.namestr);
++nevents;
return 0;
case GPTL_LSTPI:
idx = getderivedidx (GPTL_LSTPI);
if (canenable2 (PAPI_LST_INS, PAPI_TOT_INS)) {
pr_event[nevents].event = derivedtable[idx];
pr_event[nevents].numidx = enable (PAPI_LST_INS);
pr_event[nevents].denomidx = enable (PAPI_TOT_INS);
if (verbose)
printf ("GPTL_PAPIsetoption: enabling derived event %s = PAPI_LST_INS / PAPI_TOT_INS\n",
pr_event[nevents].event.namestr);
} else if (canenable2 (PAPI_L1_DCA, PAPI_TOT_INS)) {
pr_event[nevents].event = derivedtable[idx];
pr_event[nevents].numidx = enable (PAPI_L1_DCA);
pr_event[nevents].denomidx = enable (PAPI_TOT_INS);
if (verbose)
printf ("GPTL_PAPIsetoption: enabling derived event %s = PAPI_L1_DCA / PAPI_TOT_INS\n",
pr_event[nevents].event.namestr);
} else {
return GPTLerror ("GPTL_PAPIsetoption: GPTL_LSTPI unavailable\n");
}
++nevents;
return 0;
case GPTL_DCMRT:
if ( ! canenable2 (PAPI_L1_DCM, PAPI_L1_DCA))
return GPTLerror ("GPTL_PAPIsetoption: GPTL_DCMRT unavailable\n");
idx = getderivedidx (GPTL_DCMRT);
pr_event[nevents].event = derivedtable[idx];
pr_event[nevents].numidx = enable (PAPI_L1_DCM);
pr_event[nevents].denomidx = enable (PAPI_L1_DCA);
if (verbose)
printf ("GPTL_PAPIsetoption: enabling derived event %s = PAPI_L1_DCM / PAPI_L1_DCA\n",
pr_event[nevents].event.namestr);
++nevents;
return 0;
case GPTL_LSTPDCM:
idx = getderivedidx (GPTL_LSTPDCM);
if (canenable2 (PAPI_LST_INS, PAPI_L1_DCM)) {
pr_event[nevents].event = derivedtable[idx];
pr_event[nevents].numidx = enable (PAPI_LST_INS);
pr_event[nevents].denomidx = enable (PAPI_L1_DCM);
if (verbose)
printf ("GPTL_PAPIsetoption: enabling derived event %s = PAPI_LST_INS / PAPI_L1_DCM\n",
pr_event[nevents].event.namestr);
} else if (canenable2 (PAPI_L1_DCA, PAPI_L1_DCM)) {
pr_event[nevents].event = derivedtable[idx];
pr_event[nevents].numidx = enable (PAPI_L1_DCA);
pr_event[nevents].denomidx = enable (PAPI_L1_DCM);
if (verbose)
printf ("GPTL_PAPIsetoption: enabling derived event %s = PAPI_L1_DCA / PAPI_L1_DCM\n",
pr_event[nevents].event.namestr);
} else {
return GPTLerror ("GPTL_PAPIsetoption: GPTL_LSTPDCM unavailable\n");
}
++nevents;
return 0;
/*
** For L2 counts, use TC* instead of DC* to avoid PAPI derived events
*/
case GPTL_L2MRT:
if ( ! canenable2 (PAPI_L2_TCM, PAPI_L2_TCA))
return GPTLerror ("GPTL_PAPIsetoption: GPTL_L2MRT unavailable\n");
idx = getderivedidx (GPTL_L2MRT);
pr_event[nevents].event = derivedtable[idx];
pr_event[nevents].numidx = enable (PAPI_L2_TCM);
pr_event[nevents].denomidx = enable (PAPI_L2_TCA);
if (verbose)
printf ("GPTL_PAPIsetoption: enabling derived event %s = PAPI_L2_TCM / PAPI_L2_TCA\n",
pr_event[nevents].event.namestr);
++nevents;
return 0;
case GPTL_LSTPL2M:
idx = getderivedidx (GPTL_LSTPL2M);
if (canenable2 (PAPI_LST_INS, PAPI_L2_TCM)) {
pr_event[nevents].event = derivedtable[idx];
pr_event[nevents].numidx = enable (PAPI_LST_INS);
pr_event[nevents].denomidx = enable (PAPI_L2_TCM);
if (verbose)
printf ("GPTL_PAPIsetoption: enabling derived event %s = PAPI_LST_INS / PAPI_L2_TCM\n",
pr_event[nevents].event.namestr);
} else if (canenable2 (PAPI_L1_DCA, PAPI_L2_TCM)) {
pr_event[nevents].event = derivedtable[idx];
pr_event[nevents].numidx = enable (PAPI_L1_DCA);
pr_event[nevents].denomidx = enable (PAPI_L2_TCM);
if (verbose)
printf ("GPTL_PAPIsetoption: enabling derived event %s = PAPI_L1_DCA / PAPI_L2_TCM\n",
pr_event[nevents].event.namestr);
} else {
return GPTLerror ("GPTL_PAPIsetoption: GPTL_LSTPL2M unavailable\n");
}
++nevents;
return 0;
case GPTL_L3MRT:
if ( ! canenable2 (PAPI_L3_TCM, PAPI_L3_TCR))
return GPTLerror ("GPTL_PAPIsetoption: GPTL_L3MRT unavailable\n");
idx = getderivedidx (GPTL_L3MRT);
pr_event[nevents].event = derivedtable[idx];
pr_event[nevents].numidx = enable (PAPI_L3_TCM);
pr_event[nevents].denomidx = enable (PAPI_L3_TCR);
if (verbose)
printf ("GPTL_PAPIsetoption: enabling derived event %s = PAPI_L3_TCM / PAPI_L3_TCR\n",
pr_event[nevents].event.namestr);
++nevents;
return 0;
default:
break;
}
/* Check PAPI presets */
for (n = 0; n < npapientries; n++) {
if (counter == papitable[n].counter) {
if ((numidx = papievent_is_enabled (counter)) >= 0) {
pr_event[nevents].event = papitable[n];
pr_event[nevents].numidx = numidx;
pr_event[nevents].denomidx = -1; /* flag says not derived (no denominator) */
} else if (canenable (counter)) {
pr_event[nevents].event = papitable[n];
pr_event[nevents].numidx = enable (counter);
pr_event[nevents].denomidx = -1; /* flag says not derived (no denominator) */
} else {
return GPTLerror ("GPTL_PAPIsetoption: Can't enable event \n",
papitable[n].longstr);
}
if (verbose)
printf ("GPTL_PAPIsetoption: enabling PAPI preset event %s\n",
pr_event[nevents].event.namestr);
++nevents;
return 0;
}
}
/*
** Check native events last: If PAPI_event_code_to_name fails, give up
*/
if ((ret = PAPI_event_code_to_name (counter, eventname)) != PAPI_OK)
return GPTLerror ("GPTL_PAPIsetoption: name not found for counter %d: PAPI_strerror: %s\n",
counter, PAPI_strerror (ret));
/*
** A table with predefined names of various lengths does not exist for
** native events. Just truncate eventname.
*/
if ((numidx = papievent_is_enabled (counter)) >= 0) {
pr_event[nevents].event.counter = counter;
pr_event[nevents].event.namestr = (char *) GPTLallocate (12+1);
strncpy (pr_event[nevents].event.namestr, eventname, 12);
pr_event[nevents].event.namestr[12] = '\0';
pr_event[nevents].event.str16 = (char *) GPTLallocate (16+1);
strncpy (pr_event[nevents].event.str16, eventname, 16);
pr_event[nevents].event.str16[16] = '\0';
pr_event[nevents].event.longstr = (char *) GPTLallocate (PAPI_MAX_STR_LEN);
strncpy (pr_event[nevents].event.longstr, eventname, PAPI_MAX_STR_LEN);
pr_event[nevents].numidx = numidx;
pr_event[nevents].denomidx = -1; /* flag says not derived (no denominator) */
} else if (canenable (counter)) {
pr_event[nevents].event.counter = counter;
pr_event[nevents].event.namestr = (char *) GPTLallocate (12+1);
strncpy (pr_event[nevents].event.namestr, eventname, 12);
pr_event[nevents].event.namestr[12] = '\0';
pr_event[nevents].event.str16 = (char *) GPTLallocate (16+1);
strncpy (pr_event[nevents].event.str16, eventname, 16);
pr_event[nevents].event.str16[16] = '\0';
pr_event[nevents].event.longstr = (char *) GPTLallocate (PAPI_MAX_STR_LEN);
strncpy (pr_event[nevents].event.longstr, eventname, PAPI_MAX_STR_LEN);
pr_event[nevents].numidx = enable (counter);
pr_event[nevents].denomidx = -1; /* flag says not derived (no denominator) */
} else {
return GPTLerror ("GPTL_PAPIsetoption: Can't enable event %s\n", eventname);
}
if (verbose)
printf ("GPTL_PAPIsetoption: enabling native event %s\n", pr_event[nevents].event.longstr);
++nevents;
return 0;
}
/*
** canenable: determine whether a PAPI counter can be enabled
**
** Input args:
** counter: PAPI counter
**
** Return value: 0 (success) or non-zero (failure)
*/
int canenable (int counter)
{
char eventname[PAPI_MAX_STR_LEN]; /* returned from PAPI_event_code_to_name */
if (npapievents+1 > MAX_AUX)
return false;
if (PAPI_query_event (counter) != PAPI_OK) {
(void) PAPI_event_code_to_name (counter, eventname);
fprintf (stderr, "canenable: event %s not available on this arch\n", eventname);
return false;
}
return true;
}
/*
** canenable2: determine whether 2 PAPI counters can be enabled
**
** Input args:
** counter1: PAPI counter
** counter2: PAPI counter
**
** Return value: 0 (success) or non-zero (failure)
*/
int canenable2 (int counter1, int counter2)
{
char eventname[PAPI_MAX_STR_LEN]; /* returned from PAPI_event_code_to_name */
if (npapievents+2 > MAX_AUX)
return false;
if (PAPI_query_event (counter1) != PAPI_OK) {
(void) PAPI_event_code_to_name (counter1, eventname);
return false;
}
if (PAPI_query_event (counter2) != PAPI_OK) {
(void) PAPI_event_code_to_name (counter2, eventname);
return false;
}
return true;
}
/*
** papievent_is_enabled: determine whether a PAPI counter has already been
** enabled. Used internally to keep track of PAPI counters enabled. A given
** PAPI counter may occur in the computation of multiple derived events, as
** well as output directly. E.g. PAPI_FP_OPS is used to compute
** computational intensity, and floating point ops per instruction.
**
** Input args:
** counter: PAPI counter
**
** Return value: index into papieventlist (success) or negative (not found)
*/
int papievent_is_enabled (int counter)
{
int n;
for (n = 0; n < npapievents; ++n)
if (papieventlist[n] == counter)
return n;
return -1;
}
/*
** already_enabled: determine whether a PAPI-based event has already been
** enabled for printing.
**
** Input args:
** counter: PAPI or derived counter
**
** Return value: 1 (true) or 0 (false)
*/
int already_enabled (int counter)
{
int n;
for (n = 0; n < nevents; ++n)
if (pr_event[n].event.counter == counter)
return 1;
return 0;
}
/*
** enable: enable a PAPI event. ASSUMES that canenable() has already determined
** that the event can be enabled.
**
** Input args:
** counter: PAPI counter
**
** Return value: index into papieventlist
*/
int enable (int counter)
{
int n;
/* If the event is already enabled, return its index */
for (n = 0; n < npapievents; ++n) {
if (papieventlist[n] == counter) {
#ifdef DEBUG
printf ("enable: PAPI event %d is %d\n", n, counter);
#endif
return n;
}
}
/* New event */
papieventlist[npapievents++] = counter;
return npapievents-1;
}
/*
** getderivedidx: find the table index of a derived counter
**
** Input args:
** counter: derived counter
**
** Return value: index into derivedtable (success) or GPTLerror (failure)
*/
int getderivedidx (int dcounter)
{
int n;
for (n = 0; n < nderivedentries; ++n) {
if (derivedtable[n].counter == dcounter)
return n;
}
return GPTLerror ("getderivedidx: failed to find derived counter %d\n", dcounter);
}
/*
** GPTL_PAPIlibraryinit: Call PAPI_library_init if necessary
**
** Return value: 0 (success) or GPTLerror (failure)
*/
int GPTL_PAPIlibraryinit ()
{
int ret;
if ((ret = PAPI_is_initialized ()) == PAPI_NOT_INITED) {
if ((ret = PAPI_library_init (PAPI_VER_CURRENT)) != PAPI_VER_CURRENT) {
fprintf (stderr, "GPTL_PAPIlibraryinit: ret=%d PAPI_VER_CURRENT=%d\n",
ret, (int) PAPI_VER_CURRENT);
return GPTLerror ("GPTL_PAPIlibraryinit: PAPI_library_init failure:%s\n",
PAPI_strerror (ret));
}
}
return 0;
}
/*
** GPTL_PAPIinitialize(): Initialize the PAPI interface. Called from GPTLinitialize.
** PAPI_library_init must be called before any other PAPI routines.
** PAPI_thread_init is called subsequently if threading is enabled.
** Finally, allocate space for PAPI counters and start them.
**
** Input args:
** maxthreads: number of threads
**
** Return value: 0 (success) or GPTLerror or -1 (failure)
*/
int GPTL_PAPIinitialize (const int maxthreads, /* number of threads */
const bool verbose_flag, /* output verbosity */
int *nevents_out, /* nevents needed by gptl.c */
Entry *pr_event_out) /* events needed by gptl.c */
{
int ret; /* return code */
int n; /* loop index */
int t; /* thread index */
verbose = verbose_flag;
if (maxthreads < 1)
return GPTLerror ("GPTL_PAPIinitialize: maxthreads = %d\n", maxthreads);
/* Ensure that PAPI_library_init has already been called */
if ((ret = GPTL_PAPIlibraryinit ()) < 0)
return GPTLerror ("GPTL_PAPIinitialize: GPTL_PAPIlibraryinit failure\n");
/* PAPI_thread_init needs to be called if threading enabled */
#if ( defined THREADED_OMP )
if (PAPI_thread_init ((unsigned long (*)(void)) (omp_get_thread_num)) != PAPI_OK)
return GPTLerror ("GPTL_PAPIinitialize: PAPI_thread_init failure\n");
#elif ( defined THREADED_PTHREADS )
if (PAPI_thread_init ((unsigned long (*)(void)) (pthread_self)) != PAPI_OK)
return GPTLerror ("GPTL_PAPIinitialize: PAPI_thread_init failure\n");
#endif
/* allocate and initialize static local space */
EventSet = (int *) GPTLallocate (maxthreads * sizeof (int));
papicounters = (long_long **) GPTLallocate (maxthreads * sizeof (long_long *));
for (t = 0; t < maxthreads; t++) {
EventSet[t] = PAPI_NULL;
papicounters[t] = (long_long *) GPTLallocate (MAX_AUX * sizeof (long_long));
}
*nevents_out = nevents;
for (n = 0; n < nevents; ++n) {
pr_event_out[n].counter = pr_event[n].event.counter;
pr_event_out[n].namestr = pr_event[n].event.namestr;
pr_event_out[n].str8 = pr_event[n].event.str8;
pr_event_out[n].str16 = pr_event[n].event.str16;
pr_event_out[n].longstr = pr_event[n].event.longstr;
}
return 0;
}
/*
** GPTLcreate_and_start_events: Create and start the PAPI eventset.
** Threaded routine to create the "event set" (PAPI terminology) and start
** the counters. This is only done once, and is called from get_thread_num
** for the first time for the thread.
**
** Input args:
** t: thread number
**
** Return value: 0 (success) or GPTLerror (failure)
*/
int GPTLcreate_and_start_events (const int t) /* thread number */
{
int ret; /* return code */
int n; /* loop index over events */
char eventname[PAPI_MAX_STR_LEN]; /* returned from PAPI_event_code_to_name */
/* Create the event set */
if ((ret = PAPI_create_eventset (&EventSet[t])) != PAPI_OK)
return GPTLerror ("GPTLcreate_and_start_events: thread %d failure creating eventset: %s\n",
t, PAPI_strerror (ret));
if (verbose)
printf ("GPTLcreate_and_start_events: successfully created eventset for thread %d\n", t);
/* Add requested events to the event set */
for (n = 0; n < npapievents; n++) {
if ((ret = PAPI_add_event (EventSet[t], papieventlist[n])) != PAPI_OK) {
if (verbose) {
fprintf (stderr, "%s\n", PAPI_strerror (ret));
ret = PAPI_event_code_to_name (papieventlist[n], eventname);
fprintf (stderr, "GPTLcreate_and_start_events: failure adding event:%s\n",
eventname);
}
if (enable_multiplexing) {
if (verbose)
printf ("Trying multiplexing...\n");
is_multiplexed = true;
break;
} else
return GPTLerror ("enable_multiplexing is false: giving up\n");
}
}
if (is_multiplexed) {
/* Cleanup the eventset for multiplexing */
if ((ret = PAPI_cleanup_eventset (EventSet[t])) != PAPI_OK)
return GPTLerror ("GPTLcreate_and_start_events: %s\n", PAPI_strerror (ret));
if ((ret = PAPI_destroy_eventset (&EventSet[t])) != PAPI_OK)
return GPTLerror ("GPTLcreate_and_start_events: %s\n", PAPI_strerror (ret));
if ((ret = PAPI_create_eventset (&EventSet[t])) != PAPI_OK)
return GPTLerror ("GPTLcreate_and_start_events: failure creating eventset: %s\n",
PAPI_strerror (ret));
if ((ret = PAPI_multiplex_init ()) != PAPI_OK)
return GPTLerror ("GPTLcreate_and_start_events: failure from PAPI_multiplex_init%s\n",
PAPI_strerror (ret));
if ((ret = PAPI_set_multiplex (EventSet[t])) != PAPI_OK)
return GPTLerror ("GPTLcreate_and_start_events: failure from PAPI_set_multiplex: %s\n",
PAPI_strerror (ret));
for (n = 0; n < npapievents; n++) {
if ((ret = PAPI_add_event (EventSet[t], papieventlist[n])) != PAPI_OK) {
ret = PAPI_event_code_to_name (papieventlist[n], eventname);
return GPTLerror ("GPTLcreate_and_start_events: failure adding event:%s\n"
" Error was: %s\n", eventname, PAPI_strerror (ret));
}
}
}
/* Start the event set. It will only be read from now on--never stopped */
if ((ret = PAPI_start (EventSet[t])) != PAPI_OK)
return GPTLerror ("GPTLcreate_and_start_events: failed to start event set: %s\n",
PAPI_strerror (ret));
return 0;
}
/*
** GPTL_PAPIstart: Start the PAPI counters (actually they are just read).
** Called from GPTLstart.
**
** Input args:
** t: thread number
**
** Output args:
** aux: struct containing the counters
**
** Return value: 0 (success) or GPTLerror (failure)
*/
int GPTL_PAPIstart (const int t, /* thread number */
Papistats *aux) /* struct containing PAPI stats */
{
int ret; /* return code from PAPI lib calls */
int n; /* loop index */
/* If no events are to be counted just return */
if (npapievents == 0)
return 0;
/* Read the counters */
if ((ret = PAPI_read (EventSet[t], papicounters[t])) != PAPI_OK)
return GPTLerror ("GPTL_PAPIstart: %s\n", PAPI_strerror (ret));
/*
** Store the counter values. When GPTL_PAPIstop is called, the counters
** will again be read, and differenced with the values saved here.
*/
for (n = 0; n < npapievents; n++)
aux->last[n] = papicounters[t][n];
return 0;
}
/*
** GPTL_PAPIstop: Stop the PAPI counters (actually they are just read).
** Called from GPTLstop.
**
** Input args:
** t: thread number
**
** Input/output args:
** aux: struct containing the counters
**
** Return value: 0 (success) or GPTLerror (failure)
*/
int GPTL_PAPIstop (const int t, /* thread number */
Papistats *aux) /* struct containing PAPI stats */
{
int ret; /* return code from PAPI lib calls */
int n; /* loop index */
long_long delta; /* change in counters from previous read */
/* If no events are to be counted just return */
if (npapievents == 0)
return 0;
/* Read the counters */
if ((ret = PAPI_read (EventSet[t], papicounters[t])) != PAPI_OK)
return GPTLerror ("GPTL_PAPIstop: %s\n", PAPI_strerror (ret));
/*
** Accumulate the difference since timer start in aux.
** Negative accumulation can happen when multiplexing is enabled, so don't
** set count to BADCOUNT in that case.
*/
for (n = 0; n < npapievents; n++) {
#ifdef DEBUG
printf ("GPTL_PAPIstop: event %d counter value is %ld\n", n, (long) papicounters[t][n]);
#endif
delta = papicounters[t][n] - aux->last[n];
if ( ! is_multiplexed && delta < 0)
aux->accum[n] = BADCOUNT;
else
aux->accum[n] += delta;
}
return 0;
}
/*
** GPTL_PAPIprstr: Print the descriptive string for all enabled PAPI events.
** Called from GPTLpr.
**
** Input args:
** fp: file descriptor
*/
void GPTL_PAPIprstr (FILE *fp)
{
int n;
if (narrowprint) {
for (n = 0; n < nevents; n++) {
fprintf (fp, "%8.8s ", pr_event[n].event.str8);
/* Test on < 0 says it's a PAPI preset */
if (persec && pr_event[n].event.counter < 0)
fprintf (fp, "e6_/_sec ");
}
} else {
for (n = 0; n < nevents; n++) {
fprintf (fp, "%16.16s ", pr_event[n].event.str16);
/* Test on < 0 says it's a PAPI preset */
if (persec && pr_event[n].event.counter < 0)
fprintf (fp, "e6_/_sec ");
}
}
}
/*
** GPTL_PAPIpr: Print PAPI counter values for all enabled events, including
** derived events. Called from GPTLpr.
**
** Input args:
** fp: file descriptor
** aux: struct containing the counters
*/
void GPTL_PAPIpr (FILE *fp, /* file descriptor to write to */
const Papistats *aux, /* stats to write */
const int t, /* thread number */
const int count, /* number of invocations */
const double wcsec) /* wallclock time (sec) */
{
const char *shortintfmt = "%8ld ";
const char *longintfmt = "%16ld ";
const char *shortfloatfmt = "%8.2e ";
const char *longfloatfmt = "%16.10e ";
const char *intfmt; /* integer format */
const char *floatfmt; /* floating point format */
int n; /* loop index */
int numidx; /* index pointer to appropriated (derived) numerator */
int denomidx; /* index pointer to appropriated (derived) denominator */
double val; /* value to be printed */
intfmt = narrowprint ? shortintfmt : longintfmt;
floatfmt = narrowprint ? shortfloatfmt : longfloatfmt;
for (n = 0; n < nevents; n++) {
numidx = pr_event[n].numidx;
if (pr_event[n].denomidx > -1) { /* derived event */
denomidx = pr_event[n].denomidx;
#ifdef DEBUG
printf ("GPTL_PAPIpr: derived event: numidx=%d denomidx=%d values = %ld %ld\n",
numidx, denomidx, (long) aux->accum[numidx], (long) aux->accum[denomidx]);
#endif
/* Protect against divide by zero */
if (aux->accum[denomidx] > 0)
val = (double) aux->accum[numidx] / (double) aux->accum[denomidx];
else
val = 0.;