Event does not exist. (PAPI_ENOEVNT)

[Chonghan Lee]

Hello,

‌

I am currently using pypapi as a wrapper for C version of PAPI.

from pypapi import events, papi_high as high
import numpy

#high.start_counters([events.PAPI_FP_OPS,])

for n in [10, 30, 100, 300, 1000, 10000, 20000]:
    aa=numpy.mgrid[0:n:1,0:n:1][0]
    high.start_counters([events.PAPI_FP_OPS,])
    a=numpy.fft.fft(aa)
    x=high.stop_counters()
    print (n, x)

I am trying to use PAPI_FP_OPS event and I am having the PAPI_ENOEVNT error.

Event does not exist. (PAPI_ENOEVNT)
  File "/home/dusko/Documents/projects/sat/pysat/test.py", line 8, in <module>
    high.start_counters([events.PAPI_FP_OPS,])

Based on the papi_avail command, the PAPI_FP_OPS is available.

Available PAPI preset and user defined events plus hardware information.
--------------------------------------------------------------------------------
PAPI version             : 6.0.0.1
Operating system         : Linux 5.8.0-53-generic
Vendor string and code   : AuthenticAMD (2, 0x2)
Model string and code    : AMD Ryzen 9 3950X 16-Core Processor (113, 0x71)
CPU revision             : 0.000000
CPUID                    : Family/Model/Stepping 23/113/0, 0x17/0x71/0x00
CPU Max MHz              : 6767
CPU Min MHz              : 2200
Total cores              : 32
SMT threads per core     : 2
Cores per socket         : 16
Sockets                  : 1
Cores per NUMA region    : 32
NUMA regions             : 1
Running in a VM          : no
Number Hardware Counters : 5
Max Multiplex Counters   : 384
Fast counter read (rdpmc): yes
--------------------------------------------------------------------------------

================================================================================
  PAPI Preset Events
================================================================================
    Name        Code    Avail Deriv Description (Note)
PAPI_L1_DCM  0x80000000  No    No   Level 1 data cache misses
PAPI_L1_ICM  0x80000001  Yes   No   Level 1 instruction cache misses
PAPI_L2_DCM  0x80000002  Yes   No   Level 2 data cache misses
PAPI_L2_ICM  0x80000003  No    No   Level 2 instruction cache misses
PAPI_L3_DCM  0x80000004  No    No   Level 3 data cache misses
PAPI_L3_ICM  0x80000005  No    No   Level 3 instruction cache misses
PAPI_L1_TCM  0x80000006  No    No   Level 1 cache misses
PAPI_L2_TCM  0x80000007  No    No   Level 2 cache misses
PAPI_L3_TCM  0x80000008  No    No   Level 3 cache misses
PAPI_CA_SNP  0x80000009  No    No   Requests for a snoop
PAPI_CA_SHR  0x8000000a  No    No   Requests for exclusive access to shared cache line
PAPI_CA_CLN  0x8000000b  No    No   Requests for exclusive access to clean cache line
PAPI_CA_INV  0x8000000c  No    No   Requests for cache line invalidation
PAPI_CA_ITV  0x8000000d  No    No   Requests for cache line intervention
PAPI_L3_LDM  0x8000000e  No    No   Level 3 load misses
PAPI_L3_STM  0x8000000f  No    No   Level 3 store misses
PAPI_BRU_IDL 0x80000010  No    No   Cycles branch units are idle
PAPI_FXU_IDL 0x80000011  No    No   Cycles integer units are idle
PAPI_FPU_IDL 0x80000012  No    No   Cycles floating point units are idle
PAPI_LSU_IDL 0x80000013  No    No   Cycles load/store units are idle
PAPI_TLB_DM  0x80000014  Yes   No   Data translation lookaside buffer misses
PAPI_TLB_IM  0x80000015  Yes   Yes  Instruction translation lookaside buffer misses
PAPI_TLB_TL  0x80000016  No    No   Total translation lookaside buffer misses
PAPI_L1_LDM  0x80000017  No    No   Level 1 load misses
PAPI_L1_STM  0x80000018  No    No   Level 1 store misses
PAPI_L2_LDM  0x80000019  No    No   Level 2 load misses
PAPI_L2_STM  0x8000001a  No    No   Level 2 store misses
PAPI_BTAC_M  0x8000001b  No    No   Branch target address cache misses
PAPI_PRF_DM  0x8000001c  No    No   Data prefetch cache misses
PAPI_L3_DCH  0x8000001d  No    No   Level 3 data cache hits
PAPI_TLB_SD  0x8000001e  No    No   Translation lookaside buffer shootdowns
PAPI_CSR_FAL 0x8000001f  No    No   Failed store conditional instructions
PAPI_CSR_SUC 0x80000020  No    No   Successful store conditional instructions
PAPI_CSR_TOT 0x80000021  No    No   Total store conditional instructions
PAPI_MEM_SCY 0x80000022  No    No   Cycles Stalled Waiting for memory accesses
PAPI_MEM_RCY 0x80000023  No    No   Cycles Stalled Waiting for memory Reads
PAPI_MEM_WCY 0x80000024  No    No   Cycles Stalled Waiting for memory writes
PAPI_STL_ICY 0x80000025  Yes   No   Cycles with no instruction issue
PAPI_FUL_ICY 0x80000026  No    No   Cycles with maximum instruction issue
PAPI_STL_CCY 0x80000027  No    No   Cycles with no instructions completed
PAPI_FUL_CCY 0x80000028  No    No   Cycles with maximum instructions completed
PAPI_HW_INT  0x80000029  No    No   Hardware interrupts
PAPI_BR_UCN  0x8000002a  No    No   Unconditional branch instructions
PAPI_BR_CN   0x8000002b  No    No   Conditional branch instructions
PAPI_BR_TKN  0x8000002c  Yes   No   Conditional branch instructions taken
PAPI_BR_NTK  0x8000002d  No    No   Conditional branch instructions not taken
PAPI_BR_MSP  0x8000002e  Yes   No   Conditional branch instructions mispredicted
PAPI_BR_PRC  0x8000002f  No    No   Conditional branch instructions correctly predicted
PAPI_FMA_INS 0x80000030  No    No   FMA instructions completed
PAPI_TOT_IIS 0x80000031  No    No   Instructions issued
PAPI_TOT_INS 0x80000032  Yes   No   Instructions completed
PAPI_INT_INS 0x80000033  No    No   Integer instructions
PAPI_FP_INS  0x80000034  Yes   No   Floating point instructions
PAPI_LD_INS  0x80000035  No    No   Load instructions
PAPI_SR_INS  0x80000036  No    No   Store instructions
PAPI_BR_INS  0x80000037  Yes   No   Branch instructions
PAPI_VEC_INS 0x80000038  Yes   No   Vector/SIMD instructions (could include integer)
PAPI_RES_STL 0x80000039  No    No   Cycles stalled on any resource
PAPI_FP_STAL 0x8000003a  No    No   Cycles the FP unit(s) are stalled
PAPI_TOT_CYC 0x8000003b  Yes   No   Total cycles
PAPI_LST_INS 0x8000003c  No    No   Load/store instructions completed
PAPI_SYC_INS 0x8000003d  No    No   Synchronization instructions completed
PAPI_L1_DCH  0x8000003e  No    No   Level 1 data cache hits
PAPI_L2_DCH  0x8000003f  Yes   No   Level 2 data cache hits
PAPI_L1_DCA  0x80000040  Yes   No   Level 1 data cache accesses
PAPI_L2_DCA  0x80000041  No    No   Level 2 data cache accesses
PAPI_L3_DCA  0x80000042  No    No   Level 3 data cache accesses
PAPI_L1_DCR  0x80000043  No    No   Level 1 data cache reads
PAPI_L2_DCR  0x80000044  Yes   No   Level 2 data cache reads
PAPI_L3_DCR  0x80000045  No    No   Level 3 data cache reads
PAPI_L1_DCW  0x80000046  No    No   Level 1 data cache writes
PAPI_L2_DCW  0x80000047  No    No   Level 2 data cache writes
PAPI_L3_DCW  0x80000048  No    No   Level 3 data cache writes
PAPI_L1_ICH  0x80000049  Yes   Yes  Level 1 instruction cache hits
PAPI_L2_ICH  0x8000004a  No    No   Level 2 instruction cache hits
PAPI_L3_ICH  0x8000004b  No    No   Level 3 instruction cache hits
PAPI_L1_ICA  0x8000004c  Yes   No   Level 1 instruction cache accesses
PAPI_L2_ICA  0x8000004d  Yes   No   Level 2 instruction cache accesses
PAPI_L3_ICA  0x8000004e  No    No   Level 3 instruction cache accesses
PAPI_L1_ICR  0x8000004f  Yes   No   Level 1 instruction cache reads
PAPI_L2_ICR  0x80000050  No    No   Level 2 instruction cache reads
PAPI_L3_ICR  0x80000051  No    No   Level 3 instruction cache reads
PAPI_L1_ICW  0x80000052  No    No   Level 1 instruction cache writes
PAPI_L2_ICW  0x80000053  No    No   Level 2 instruction cache writes
PAPI_L3_ICW  0x80000054  No    No   Level 3 instruction cache writes
PAPI_L1_TCH  0x80000055  No    No   Level 1 total cache hits
PAPI_L2_TCH  0x80000056  No    No   Level 2 total cache hits
PAPI_L3_TCH  0x80000057  No    No   Level 3 total cache hits
PAPI_L1_TCA  0x80000058  Yes   Yes  Level 1 total cache accesses
PAPI_L2_TCA  0x80000059  No    No   Level 2 total cache accesses
PAPI_L3_TCA  0x8000005a  No    No   Level 3 total cache accesses
PAPI_L1_TCR  0x8000005b  No    No   Level 1 total cache reads
PAPI_L2_TCR  0x8000005c  No    No   Level 2 total cache reads
PAPI_L3_TCR  0x8000005d  No    No   Level 3 total cache reads
PAPI_L1_TCW  0x8000005e  No    No   Level 1 total cache writes
PAPI_L2_TCW  0x8000005f  No    No   Level 2 total cache writes
PAPI_L3_TCW  0x80000060  No    No   Level 3 total cache writes
PAPI_FML_INS 0x80000061  Yes   No   Floating point multiply instructions
PAPI_FAD_INS 0x80000062  Yes   No   Floating point add instructions
PAPI_FDV_INS 0x80000063  Yes   No   Floating point divide instructions (Counts both divide and square root instructions)
PAPI_FSQ_INS 0x80000064  Yes   No   Floating point square root instructions (Counts both divide and square root instructions)
PAPI_FNV_INS 0x80000065  No    No   Floating point inverse instructions
PAPI_FP_OPS  0x80000066  Yes   No   Floating point operations
PAPI_SP_OPS  0x80000067  Yes   No   Floating point operations; optimized to count scaled single precision vector operations
PAPI_DP_OPS  0x80000068  Yes   No   Floating point operations; optimized to count scaled double precision vector operations
PAPI_VEC_SP  0x80000069  No    No   Single precision vector/SIMD instructions
PAPI_VEC_DP  0x8000006a  No    No   Double precision vector/SIMD instructions
PAPI_REF_CYC 0x8000006b  No    No   Reference clock cycles
--------------------------------------------------------------------------------
Of 108 possible events, 27 are available, of which 3 are derived.

Can anyone give any advice on what could potentially cause this no event issue?

‌

‌

[Giuseppe Congiu]

Please try reproducing this with a C program and we will address it in case. The pypapi binding for PAPI are not maintained by the PAPI team. It is a separate project. For any pypapi related problem please contact the project maintainers.