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clpeak's Introduction

clpeak

A tool which profiles OpenCL devices to find their peak capacities like bandwidth & compute

eg:

Platform: AMD Accelerated Parallel Processing

Device: Cayman

Driver version: 1348.4 (Linux x64)

Global memory bandwidth (GBPS)
  float   : 130.97
  float2  : 131.36
  float4  : 90.50
  float8  : 69.91
  float16 : 35.27

Single-precision compute (GFLOPS)
  float   : 674.44
  float2  : 1345.68
  float4  : 2601.47
  float8  : 2586.69
  float16 : 2573.38

Double-precision compute (GFLOPS)
  double   : 671.24
  double2  : 671.59
  double4  : 670.93
  double8  : 669.51
  double16 : 666.50

Transfer bandwidth (GBPS)
  enqueueWriteBuffer         : 3.53
  enqueueReadBuffer          : 4.43
  enqueueMapBuffer(for read) : 152.89
    memcpy from mapped ptr   : 4.40
  enqueueUnmap(after write)  : 1781.26
    memcpy to mapped ptr     : 4.42

Kernel launch latency : 44.22 us

Platform: ARM Platform

Device: Mali-T604

Driver version: 1.1 (Linux ARM)

Global memory bandwidth (GBPS)
  float   : 1.56
  float2  : 4.41
  float4  : 5.75
  float8  : Out of resources! Skipped

Single-precision compute (GFLOPS)
  float   : 2.38
  float2  : 16.40
  float4  : 8.07
  float8  : 21.84
  float16 : 16.37

No double precision support! Skipped

Transfer bandwidth (GBPS)
  enqueueWriteBuffer         : 5.84
  enqueueReadBuffer          : 2.59
  enqueueMapBuffer(for read) : 934.99
    memcpy from mapped ptr   : 2.83
  enqueueUnmap(after write)  : 1813.75
    memcpy to mapped ptr     : 2.85

Kernel launch latency : 149.46 us

Send in results of your device to [email protected]

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