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51 lines
2.7 KiB
Plaintext
51 lines
2.7 KiB
Plaintext
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SHORT Overview of arithmetic and main memory performance
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EVENTSET
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PMC0 INST_RETIRED
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PMC1 CPU_CYCLES
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PMC2 BUS_READ_TOTAL_MEM
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PMC3 BUS_WRITE_TOTAL_MEM
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PMC4 FP_SP_FIXED_OPS_SPEC
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PMC5 FP_SP_SCALE_OPS_SPEC
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METRICS
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Runtime (RDTSC) [s] time
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CPI PMC1/PMC0
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SP (FP) [MFLOP/s] 1E-06*(PMC4)/time
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SP (FP+SVE128) [MFLOP/s] 1E-06*(((PMC5*128.0)/128.0)+PMC4)/time
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SP (FP+SVE256) [MFLOP/s] 1E-06*(((PMC5*256.0)/128.0)+PMC4)/time
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SP (FP+SVE512) [MFLOP/s] 1E-06*(((PMC5*512.0)/128.0)+PMC4)/time
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Memory read bandwidth [MBytes/s] 1.0E-06*(PMC2)*256.0/time
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Memory read data volume [GBytes] 1.0E-09*(PMC2)*256.0
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Memory write bandwidth [MBytes/s] 1.0E-06*(PMC3)*256.0/time
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Memory write data volume [GBytes] 1.0E-09*(PMC3)*256.0
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Memory bandwidth [MBytes/s] 1.0E-06*(PMC2+PMC3)*256.0/time
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Memory data volume [GBytes] 1.0E-09*(PMC2+PMC3)*256.0
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Operational intensity (FP) PMC4/((PMC2+PMC3)*256.0)
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Operational intensity (FP+SVE128) (((PMC5*128.0)/128.0)+PMC4)/((PMC2+PMC3)*256.0)
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Operational intensity (FP+SVE256) (((PMC5*256.0)/128.0)+PMC4)/((PMC2+PMC3)*256.0)
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Operational intensity (FP+SVE512) (((PMC5*512.0)/128.0)+PMC4)/((PMC2+PMC3)*256.0)
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LONG
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Formulas:
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SP (FP) [MFLOP/s] = 1E-06*FP_SP_FIXED_OPS_SPEC/time
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SP (FP+SVE128) [MFLOP/s] = 1.0E-06*(FP_SP_FIXED_OPS_SPEC+((FP_SP_SCALE_OPS_SPEC*128)/128))/time
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SP (FP+SVE256) [MFLOP/s] = 1.0E-06*(FP_SP_FIXED_OPS_SPEC+((FP_SP_SCALE_OPS_SPEC*256)/128))/time
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SP (FP+SVE512) [MFLOP/s] = 1.0E-06*(FP_SP_FIXED_OPS_SPEC+((FP_SP_SCALE_OPS_SPEC*512)/128))/time
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Memory read bandwidth [MBytes/s] = 1.0E-06*(BUS_READ_TOTAL_MEM)*256.0/runtime
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Memory read data volume [GBytes] = 1.0E-09*(BUS_READ_TOTAL_MEM)*256.0
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Memory write bandwidth [MBytes/s] = 1.0E-06*(BUS_WRITE_TOTAL_MEM)*256.0/runtime
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Memory write data volume [GBytes] = 1.0E-09*(BUS_WRITE_TOTAL_MEM)*256.0
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Memory bandwidth [MBytes/s] = 1.0E-06*(BUS_READ_TOTAL_MEM+BUS_WRITE_TOTAL_MEM)*256.0/runtime
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Memory data volume [GBytes] = 1.0E-09*(BUS_READ_TOTAL_MEM+BUS_WRITE_TOTAL_MEM)*256.0
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Operational intensity (FP) = FP_SP_FIXED_OPS_SPEC/((BUS_READ_TOTAL_MEM+BUS_WRITE_TOTAL_MEM)*256.0)
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Operational intensity (FP+SVE128) = (FP_SP_FIXED_OPS_SPEC+((FP_SP_SCALE_OPS_SPEC*128)/128)/((BUS_READ_TOTAL_MEM+BUS_WRITE_TOTAL_MEM)*256.0)
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Operational intensity (FP+SVE256) = (FP_SP_FIXED_OPS_SPEC+((FP_SP_SCALE_OPS_SPEC*256)/128)/((BUS_READ_TOTAL_MEM+BUS_WRITE_TOTAL_MEM)*256.0)
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Operational intensity (FP+SVE512) = (FP_SP_FIXED_OPS_SPEC+((FP_SP_SCALE_OPS_SPEC*512)/128)/((BUS_READ_TOTAL_MEM+BUS_WRITE_TOTAL_MEM)*256.0)
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-
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Profiling group to measure memory bandwidth and single-precision FP rate for scalar and SVE vector
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operations with different widths. The events for the SVE metrics assumes that all vector elements
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are active. The cache line size is 256 Byte.
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