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AccuracyIvyBridgeEP

Thomas.Roehl edited this page Aug 7, 2015 · 5 revisions

Accuracy Tests for Intel Xeon IvyBridge EN/EP/EX processor

Hardware description

CPU name: Intel(R) Xeon(R) CPU E5-2690 v2 @ 3.00GHz
CPU stepping: 4
Sockets: 2
Cores per socket: 10
Threads per core: 2
Total number of processing units: 40

Available verification tests

Not all performance groups can be tested for accuracy. We don't have a test application for each performance group. Here only the groups are listed that can be verified. Each group is followed by the low-level benchmarks that are performed for comparison.

Group Tests
BRANCH load, triad, copy, stream, store
DATA triad, copy, stream, store
FLOPS_AVX triad_avx
FLOPS_DP triad, stream
FLOPS_SP sum
L2 load, triad, copy, stream, store
L3 load, triad, copy, stream, store
MEM load, triad, copy, stream, store

Information about the pictures

For memory bandwidth accuracy tests, the result of likwid-bench needs to be scaled to represent the real values. The reason is traffic caused by write-allocates (the store operation on a cache line that is not present at the L1 cache must be loaded first before the store operation can complete). In these cases, the figures contain three curves, the original output of likwid-bench, the scaled version and the derived metrics of likwid-perfctr measurements.

Verification of Group BRANCH

Verification of Group BRANCH with Test load

Benchmark performed with data sizes: 12kB, 1MB, 4MB, 1GB.

Each data size is tested 5 times, hence the first 5 entries on the x-axis correspond to the 5 runs for the first data size of 12kB and so on.

ivybridgeEP_BRANCH_load

Variant BENCH (Min) LIKWID (Min) Error (Min) BENCH (Max) LIKWID (Max) Error (Max) BENCH (Avg) LIKWID (Avg) Error (Avg)
12kB 8.00 7.01 -12.40% 8.00 7.01 -12.40% 8.00 7.01 -12.40%
1MB 8.00 7.00 -12.50% 8.00 7.00 -12.50% 8.00 7.00 -12.50%
4MB 8.00 7.00 -12.50% 8.00 7.00 -12.50% 8.00 7.00 -12.50%
1GB 8.00 7.00 -12.50% 8.00 7.00 -12.50% 8.00 7.00 -12.50%

Verification of Group BRANCH with Test triad

Benchmark performed with data sizes: 12kB, 1MB, 4MB, 1GB.

Each data size is tested 5 times, hence the first 5 entries on the x-axis correspond to the 5 runs for the first data size of 12kB and so on.

ivybridgeEP_BRANCH_triad

Variant BENCH (Min) LIKWID (Min) Error (Min) BENCH (Max) LIKWID (Max) Error (Max) BENCH (Avg) LIKWID (Avg) Error (Avg)
12kB 19.00 18.69 -1.65% 19.00 18.69 -1.65% 19.00 18.69 -1.65%
1MB 19.00 19.00 -0.02% 19.00 19.00 -0.02% 19.00 19.00 -0.02%
4MB 19.00 19.00 -0.01% 19.00 19.00 -0.01% 19.00 19.00 -0.01%
1GB 19.00 19.00 0.00% 19.00 19.00 0.00% 19.00 19.00 0.00%

Verification of Group BRANCH with Test copy

Benchmark performed with data sizes: 12kB, 1MB, 4MB, 1GB.

Each data size is tested 5 times, hence the first 5 entries on the x-axis correspond to the 5 runs for the first data size of 12kB and so on.

ivybridgeEP_BRANCH_copy

Variant BENCH (Min) LIKWID (Min) Error (Min) BENCH (Max) LIKWID (Max) Error (Max) BENCH (Avg) LIKWID (Avg) Error (Avg)
12kB 11.00 10.96 -0.38% 11.00 10.96 -0.38% 11.00 10.96 -0.38%
1MB 11.00 11.00 0.00% 11.00 11.00 0.00% 11.00 11.00 0.00%
4MB 11.00 11.00 0.00% 11.00 11.00 0.00% 11.00 11.00 0.00%
1GB 11.00 11.00 0.00% 11.00 11.00 0.00% 11.00 11.00 0.00%

Verification of Group BRANCH with Test stream

Benchmark performed with data sizes: 12kB, 1MB, 4MB, 1GB.

Each data size is tested 5 times, hence the first 5 entries on the x-axis correspond to the 5 runs for the first data size of 12kB and so on.

ivybridgeEP_BRANCH_stream

Variant BENCH (Min) LIKWID (Min) Error (Min) BENCH (Max) LIKWID (Max) Error (Max) BENCH (Avg) LIKWID (Avg) Error (Avg)
12kB 19.00 18.55 -2.35% 19.00 18.55 -2.35% 19.00 18.55 -2.35%
1MB 19.00 18.99 -0.03% 19.00 18.99 -0.03% 19.00 18.99 -0.03%
4MB 19.00 19.00 -0.01% 19.00 19.00 -0.01% 19.00 19.00 -0.01%
1GB 19.00 19.00 0.00% 19.00 19.00 0.00% 19.00 19.00 0.00%

Verification of Group BRANCH with Test store

Benchmark performed with data sizes: 12kB, 1MB, 4MB, 1GB.

Each data size is tested 5 times, hence the first 5 entries on the x-axis correspond to the 5 runs for the first data size of 12kB and so on.

ivybridgeEP_BRANCH_store

Variant BENCH (Min) LIKWID (Min) Error (Min) BENCH (Max) LIKWID (Max) Error (Max) BENCH (Avg) LIKWID (Avg) Error (Avg)
12kB 7.00 7.02 0.26% 7.00 7.02 0.26% 7.00 7.02 0.26%
1MB 7.00 7.00 0.00% 7.00 7.00 0.00% 7.00 7.00 0.00%
4MB 7.00 7.00 0.00% 7.00 7.00 0.00% 7.00 7.00 0.00%
1GB 7.00 7.00 0.00% 7.00 7.00 0.00% 7.00 7.00 0.00%

Verification of Group DATA

Verification of Group DATA with Test triad

Benchmark performed with data sizes: 12kB, 1MB, 4MB, 1GB.

Each data size is tested 5 times, hence the first 5 entries on the x-axis correspond to the 5 runs for the first data size of 12kB and so on.

ivybridgeEP_DATA_triad

Variant BENCH (Min) LIKWID (Min) Error (Min) BENCH (Max) LIKWID (Max) Error (Max) BENCH (Avg) LIKWID (Avg) Error (Avg)
12kB 3.00 2.98 -0.70% 3.00 2.98 -0.70% 3.00 2.98 -0.70%
1MB 3.00 3.00 -0.01% 3.00 3.00 -0.01% 3.00 3.00 -0.01%
4MB 3.00 3.00 0.00% 3.00 3.00 0.00% 3.00 3.00 0.00%
1GB 3.00 3.00 0.00% 3.00 3.00 0.00% 3.00 3.00 0.00%

Verification of Group DATA with Test copy

Benchmark performed with data sizes: 12kB, 1MB, 4MB, 1GB.

Each data size is tested 5 times, hence the first 5 entries on the x-axis correspond to the 5 runs for the first data size of 12kB and so on.

ivybridgeEP_DATA_copy

Variant BENCH (Min) LIKWID (Min) Error (Min) BENCH (Max) LIKWID (Max) Error (Max) BENCH (Avg) LIKWID (Avg) Error (Avg)
12kB 1.00 1.01 0.53% 1.00 1.01 0.53% 1.00 1.01 0.53%
1MB 1.00 1.00 0.01% 1.00 1.00 0.01% 1.00 1.00 0.01%
4MB 1.00 1.00 0.00% 1.00 1.00 0.00% 1.00 1.00 0.00%
1GB 1.00 1.00 0.00% 1.00 1.00 0.00% 1.00 1.00 0.00%

Verification of Group DATA with Test stream

Benchmark performed with data sizes: 12kB, 1MB, 4MB, 1GB.

Each data size is tested 5 times, hence the first 5 entries on the x-axis correspond to the 5 runs for the first data size of 12kB and so on.

ivybridgeEP_DATA_stream

Variant BENCH (Min) LIKWID (Min) Error (Min) BENCH (Max) LIKWID (Max) Error (Max) BENCH (Avg) LIKWID (Avg) Error (Avg)
12kB 2.00 2.00 -0.20% 2.00 2.00 -0.20% 2.00 2.00 -0.20%
1MB 2.00 2.00 0.00% 2.00 2.00 0.00% 2.00 2.00 0.00%
4MB 2.00 2.00 0.00% 2.00 2.00 0.00% 2.00 2.00 0.00%
1GB 2.00 2.00 0.00% 2.00 2.00 0.00% 2.00 2.00 0.00%

Verification of Group DATA with Test store

Benchmark performed with data sizes: 12kB, 1MB, 4MB, 1GB.

Each data size is tested 5 times, hence the first 5 entries on the x-axis correspond to the 5 runs for the first data size of 12kB and so on.

ivybridgeEP_DATA_store

Variant BENCH (Min) LIKWID (Min) Error (Min) BENCH (Max) LIKWID (Max) Error (Max) BENCH (Avg) LIKWID (Avg) Error (Avg)
12kB 0.00 0.01 7.07% 0.00 0.01 7.06% 0.00 0.01 7.07%
1MB 0.00 0.00 0.00% 0.00 0.00 0.00% 0.00 0.00 0.00%
4MB 0.00 0.00 0.00% 0.00 0.00 0.00% 0.00 0.00 0.00%
1GB 0.00 0.00 0.00% 0.00 0.00 0.00% 0.00 0.00 0.00%

Verification of Group FLOPS_AVX

Verification of Group FLOPS_AVX with Test triad_avx

Benchmark performed with data sizes: 24kB, 128kB, 2MB, 1GB.

Each data size is tested 10 times, hence the first 10 entries on the x-axis correspond to the 10 runs for the first data size of 24kB and so on.

ivybridgeEP_FLOPS_AVX_triad_avx

Variant BENCH (Min) LIKWID (Min) Error (Min) BENCH (Max) LIKWID (Max) Error (Max) BENCH (Avg) LIKWID (Avg) Error (Avg)
24kB 3993.00 3994.46 0.04% 4644.00 4645.41 13.99% 4561.60 4562.90 0.03%
128kB 2757.00 2758.21 0.04% 2825.00 2826.15 2.36% 2810.50 2811.44 0.03%
2MB 2008.00 2008.78 0.04% 2027.00 2028.21 0.90% 2021.50 2022.20 0.03%
1GB 863.00 865.45 0.28% 870.00 872.34 0.52% 866.80 869.43 0.30%

Verification of Group FLOPS_DP

Verification of Group FLOPS_DP with Test triad

Benchmark performed with data sizes: 12kB, 24kB, 128kB, 2MB, 1GB.

Each data size is tested 10 times, hence the first 10 entries on the x-axis correspond to the 10 runs for the first data size of 12kB and so on.

ivybridgeEP_FLOPS_DP_triad

Variant BENCH (Min) LIKWID (Min) Error (Min) BENCH (Max) LIKWID (Max) Error (Max) BENCH (Avg) LIKWID (Avg) Error (Avg)
12kB 3255.00 3255.99 0.03% 3464.00 3465.29 6.00% 3422.10 3423.14 0.03%
24kB 3496.00 3510.80 0.42% 3520.00 3530.37 0.26% 3512.50 3523.17 0.30%
128kB 2690.00 3057.21 13.65% 2736.00 3083.45 11.74% 2712.70 3071.08 13.21%
2MB 1821.00 2126.10 16.75% 1919.00 2464.83 10.79% 1907.40 2418.54 26.80%
1GB 870.00 1110.75 27.67% 880.00 1129.08 26.22% 877.10 1123.65 28.11%

Verification of Group FLOPS_DP with Test stream

Benchmark performed with data sizes: 12kB, 24kB, 128kB, 2MB, 1GB.

Each data size is tested 10 times, hence the first 10 entries on the x-axis correspond to the 10 runs for the first data size of 12kB and so on.

ivybridgeEP_FLOPS_DP_stream

Variant BENCH (Min) LIKWID (Min) Error (Min) BENCH (Max) LIKWID (Max) Error (Max) BENCH (Avg) LIKWID (Avg) Error (Avg)
12kB 7462.00 7465.25 0.04% 7682.00 7685.19 2.82% 7625.60 7628.75 0.04%
24kB 7724.00 7725.42 0.02% 7945.00 7946.47 2.76% 7913.20 7915.01 0.02%
128kB 4811.00 6196.82 28.81% 4905.00 6255.64 26.34% 4874.90 6236.09 27.92%
2MB 2645.00 4306.28 62.81% 2767.00 4505.60 55.63% 2746.80 4478.26 63.04%
1GB 1144.00 1904.73 66.50% 1162.00 1937.19 63.92% 1150.90 1920.63 66.88%

Verification of Group FLOPS_SP

Verification of Group FLOPS_SP with Test sum

Benchmark performed with data sizes: 24kB, 128kB, 2MB, 1GB.

Each data size is tested 10 times, hence the first 10 entries on the x-axis correspond to the 10 runs for the first data size of 24kB and so on.

ivybridgeEP_FLOPS_SP_sum

Variant BENCH (Min) LIKWID (Min) Error (Min) BENCH (Max) LIKWID (Max) Error (Max) BENCH (Avg) LIKWID (Avg) Error (Avg)
24kB 14030.00 14032.88 0.02% 14126.00 14128.29 0.66% 14072.00 14074.53 0.02%
128kB 11237.00 11397.21 1.43% 11455.00 11591.70 0.50% 11401.20 11542.88 1.24%
2MB 7498.00 8164.71 8.89% 8240.00 8731.44 0.91% 8105.40 8632.19 6.50%
1GB 4506.00 4579.79 1.64% 4549.00 4620.72 0.68% 4536.30 4608.55 1.59%

Verification of Group L2

Verification of Group L2 with Test load

Benchmark performed with data sizes: 85kB, 129kB, 173kB, 217kB.

Each data size is tested 5 times, hence the first 5 entries on the x-axis correspond to the 5 runs for the first data size of 85kB and so on.

ivybridgeEP_L2_load

The table contains the values after scaling the original values up using the scaling factor 1.00. The table entries for BENCH and LIKWID have the unit 'MByte/s'

Variant BENCH (Min) LIKWID (Min) Error (Min) BENCH (Max) LIKWID (Max) Error (Max) BENCH (Avg) LIKWID (Avg) Error (Avg)
85kB 31455.00 31710.59 0.81% 32300.00 32558.75 1.82% 32093.60 32352.39 0.81%
129kB 31855.00 32030.51 0.55% 32053.00 32229.62 0.07% 31932.80 32115.35 0.57%
173kB 30412.00 30535.45 0.41% 32222.00 32352.61 5.23% 31762.40 31890.88 0.40%
217kB 29552.00 29642.41 0.31% 30784.00 30915.52 3.71% 30350.80 30462.26 0.37%

Verification of Group L2 with Test triad

Benchmark performed with data sizes: 85kB, 129kB, 173kB, 217kB.

Each data size is tested 5 times, hence the first 5 entries on the x-axis correspond to the 5 runs for the first data size of 85kB and so on.

ivybridgeEP_L2_triad

The table contains the values after scaling the original values up using the scaling factor 1.25. The table entries for BENCH and LIKWID have the unit 'MByte/s'

Variant BENCH (Min) LIKWID (Min) Error (Min) BENCH (Max) LIKWID (Max) Error (Max) BENCH (Avg) LIKWID (Avg) Error (Avg)
85kB 52920.00 54706.15 3.38% 54707.50 56519.07 0.00% 54135.25 55921.01 3.30%
129kB 52751.25 54298.81 2.93% 54533.75 56167.37 0.43% 53950.75 55505.04 2.88%
173kB 52840.00 54214.77 2.60% 54216.25 55664.61 0.00% 53679.25 55084.68 2.62%
217kB 50503.75 51615.04 2.20% 52240.00 53482.18 1.20% 51433.25 52633.21 2.33%

Verification of Group L2 with Test copy

Benchmark performed with data sizes: 85kB, 129kB, 173kB, 217kB.

Each data size is tested 5 times, hence the first 5 entries on the x-axis correspond to the 5 runs for the first data size of 85kB and so on.

ivybridgeEP_L2_copy

The table contains the values after scaling the original values up using the scaling factor 1.50. The table entries for BENCH and LIKWID have the unit 'MByte/s'

Variant BENCH (Min) LIKWID (Min) Error (Min) BENCH (Max) LIKWID (Max) Error (Max) BENCH (Avg) LIKWID (Avg) Error (Avg)
85kB 63777.00 64195.92 0.66% 64851.00 65203.54 1.01% 64536.30 64902.18 0.57%
129kB 62353.50 62607.25 0.41% 65464.50 65730.70 4.36% 64294.80 64556.22 0.41%
173kB 61584.00 61769.55 0.30% 65562.00 65763.34 5.78% 64505.70 64707.52 0.31%
217kB 59139.00 59269.25 0.22% 62920.50 63059.02 5.80% 61118.40 61252.30 0.22%

Verification of Group L2 with Test stream

Benchmark performed with data sizes: 85kB, 129kB, 173kB, 217kB.

Each data size is tested 5 times, hence the first 5 entries on the x-axis correspond to the 5 runs for the first data size of 85kB and so on.

ivybridgeEP_L2_stream

The table contains the values after scaling the original values up using the scaling factor 1.33. The table entries for BENCH and LIKWID have the unit 'MByte/s'

Variant BENCH (Min) LIKWID (Min) Error (Min) BENCH (Max) LIKWID (Max) Error (Max) BENCH (Avg) LIKWID (Avg) Error (Avg)
85kB 78962.03 79632.76 0.85% 79534.01 80227.63 0.12% 79288.42 79973.96 0.86%
129kB 74978.13 75411.65 0.58% 78792.70 79263.27 4.29% 77246.07 77699.30 0.59%
173kB 77144.74 77472.64 0.43% 78255.38 78585.04 1.00% 77838.32 78160.49 0.41%
217kB 69640.93 69895.65 0.37% 73140.84 73412.02 4.44% 71297.95 71561.24 0.37%

Verification of Group L2 with Test store

Benchmark performed with data sizes: 85kB, 129kB, 173kB, 217kB.

Each data size is tested 5 times, hence the first 5 entries on the x-axis correspond to the 5 runs for the first data size of 85kB and so on.

ivybridgeEP_L2_store

The table contains the values after scaling the original values up using the scaling factor 2.00. The table entries for BENCH and LIKWID have the unit 'MByte/s'

Variant BENCH (Min) LIKWID (Min) Error (Min) BENCH (Max) LIKWID (Max) Error (Max) BENCH (Avg) LIKWID (Avg) Error (Avg)
85kB 50728.00 50912.53 0.36% 50842.00 51038.27 0.14% 50796.40 50988.27 0.38%
129kB 49994.00 50135.19 0.28% 50962.00 51105.45 1.62% 50675.20 50817.87 0.28%
173kB 49328.00 49424.36 0.20% 51000.00 51099.74 3.09% 50539.20 50637.60 0.19%
217kB 50440.00 50516.90 0.15% 50788.00 50875.80 0.53% 50617.20 50702.11 0.17%

Verification of Group L3

Verification of Group L3 with Test load

Benchmark performed with data sizes: 4376kB, 8420kB, 12464kB, 16508kB.

Each data size is tested 5 times, hence the first 5 entries on the x-axis correspond to the 5 runs for the first data size of 4376kB and so on.

ivybridgeEP_L3_load

The table contains the values after scaling the original values up using the scaling factor 1.00. The table entries for BENCH and LIKWID have the unit 'MByte/s'

Variant BENCH (Min) LIKWID (Min) Error (Min) BENCH (Max) LIKWID (Max) Error (Max) BENCH (Avg) LIKWID (Avg) Error (Avg)
4376kB 24562.00 24408.72 -0.62% 24873.00 24719.76 -0.64% 24789.60 24637.21 -0.61%
8420kB 24203.00 24052.07 -0.62% 24892.00 24733.88 -2.19% 24712.00 24560.04 -0.61%
12464kB 23242.00 23105.27 -0.59% 24507.00 24356.71 -4.80% 23951.00 23807.95 -0.60%
16508kB 21227.00 21127.23 -0.47% 22801.00 22681.00 -6.85% 21769.80 21664.15 -0.49%

Verification of Group L3 with Test triad

Benchmark performed with data sizes: 4376kB, 8420kB, 12464kB, 16508kB.

Each data size is tested 5 times, hence the first 5 entries on the x-axis correspond to the 5 runs for the first data size of 4376kB and so on.

ivybridgeEP_L3_triad

The table contains the values after scaling the original values up using the scaling factor 1.33. The table entries for BENCH and LIKWID have the unit 'MByte/s'

Variant BENCH (Min) LIKWID (Min) Error (Min) BENCH (Max) LIKWID (Max) Error (Max) BENCH (Avg) LIKWID (Avg) Error (Avg)
4376kB 39110.22 33196.42 -15.12% 40437.89 34320.17 -12.25% 39965.21 33923.09 -15.12%
8420kB 38911.60 33430.28 -14.09% 39103.56 33594.18 -13.67% 38990.52 33498.09 -14.09%
12464kB 38135.80 32648.22 -14.39% 39976.67 34004.12 -10.83% 38930.80 33240.95 -14.62%
16508kB 34364.74 29742.69 -13.45% 36510.87 31417.25 -8.58% 35362.36 30536.97 -13.65%

Verification of Group L3 with Test copy

Benchmark performed with data sizes: 4376kB, 8420kB, 12464kB, 16508kB.

Each data size is tested 5 times, hence the first 5 entries on the x-axis correspond to the 5 runs for the first data size of 4376kB and so on.

ivybridgeEP_L3_copy

The table contains the values after scaling the original values up using the scaling factor 1.50. The table entries for BENCH and LIKWID have the unit 'MByte/s'

Variant BENCH (Min) LIKWID (Min) Error (Min) BENCH (Max) LIKWID (Max) Error (Max) BENCH (Avg) LIKWID (Avg) Error (Avg)
4376kB 40792.50 33837.14 -17.05% 40993.50 34015.17 -16.61% 40883.70 33918.31 -17.04%
8420kB 39850.50 33057.11 -17.05% 41026.50 34048.00 -14.56% 40742.10 33809.50 -17.02%
12464kB 37434.00 31593.43 -15.60% 39768.00 33144.77 -11.46% 38610.60 32394.61 -16.10%
16508kB 32937.00 28670.63 -12.95% 35715.00 30546.78 -7.26% 34236.60 29562.30 -13.65%

Verification of Group L3 with Test stream

Benchmark performed with data sizes: 4376kB, 8420kB, 12464kB, 16508kB.

Each data size is tested 5 times, hence the first 5 entries on the x-axis correspond to the 5 runs for the first data size of 4376kB and so on.

ivybridgeEP_L3_stream

The table contains the values after scaling the original values up using the scaling factor 1.33. The table entries for BENCH and LIKWID have the unit 'MByte/s'

Variant BENCH (Min) LIKWID (Min) Error (Min) BENCH (Max) LIKWID (Max) Error (Max) BENCH (Avg) LIKWID (Avg) Error (Avg)
4376kB 42638.67 39051.63 -8.41% 43937.01 40250.70 -5.60% 43550.71 39889.88 -8.41%
8420kB 42762.64 39184.05 -8.37% 43890.36 40210.27 -5.97% 43614.43 39960.25 -8.38%
12464kB 39900.69 35978.55 -9.83% 42509.37 38629.66 -3.19% 40999.61 37073.78 -9.58%
16508kB 35093.89 31621.83 -9.89% 36225.61 32660.43 -6.93% 35752.93 32291.09 -9.68%

Verification of Group L3 with Test store

Benchmark performed with data sizes: 4376kB, 8420kB, 12464kB, 16508kB.

Each data size is tested 5 times, hence the first 5 entries on the x-axis correspond to the 5 runs for the first data size of 4376kB and so on.

ivybridgeEP_L3_store

The table contains the values after scaling the original values up using the scaling factor 2.00. The table entries for BENCH and LIKWID have the unit 'MByte/s'

Variant BENCH (Min) LIKWID (Min) Error (Min) BENCH (Max) LIKWID (Max) Error (Max) BENCH (Avg) LIKWID (Avg) Error (Avg)
4376kB 43876.00 35259.58 -19.64% 45130.00 36268.47 -17.34% 44846.40 36031.78 -19.66%
8420kB 44880.00 36044.35 -19.69% 45138.00 36248.40 -19.23% 45083.60 36205.22 -19.69%
12464kB 42438.00 34186.44 -19.44% 45128.00 36232.86 -14.62% 43638.00 35018.30 -19.75%
16508kB 33892.00 28183.95 -16.84% 35184.00 29256.64 -13.68% 34493.20 28626.62 -17.01%

Verification of Group MEM

Verification of Group MEM with Test load

Benchmark performed with data sizes: 232243kB, 437862kB, 643481kB, 849100kB.

Each data size is tested 10 times, hence the first 10 entries on the x-axis correspond to the 10 runs for the first data size of 232243kB and so on.

ivybridgeEP_MEM_load

The table contains the values after scaling the original values up using the scaling factor 1.00. The table entries for BENCH and LIKWID have the unit 'MByte/s'

Variant BENCH (Min) LIKWID (Min) Error (Min) BENCH (Max) LIKWID (Max) Error (Max) BENCH (Avg) LIKWID (Avg) Error (Avg)
232243kB 15316.00 15405.44 0.58% 15453.00 15522.53 0.31% 15408.70 15482.97 0.48%
437862kB 15377.00 15458.02 0.53% 15427.00 15499.49 0.20% 15410.70 15485.82 0.49%
643481kB 15289.00 15380.00 0.60% 15445.00 15515.42 0.42% 15411.80 15486.72 0.49%
849100kB 15303.00 15386.33 0.54% 15448.00 15519.34 0.40% 15405.00 15479.96 0.49%

Verification of Group MEM with Test triad

Benchmark performed with data sizes: 232243kB, 437862kB, 643481kB, 849100kB.

Each data size is tested 10 times, hence the first 10 entries on the x-axis correspond to the 10 runs for the first data size of 232243kB and so on.

ivybridgeEP_MEM_triad

The table contains the values after scaling the original values up using the scaling factor 1.25. The table entries for BENCH and LIKWID have the unit 'MByte/s'

Variant BENCH (Min) LIKWID (Min) Error (Min) BENCH (Max) LIKWID (Max) Error (Max) BENCH (Avg) LIKWID (Avg) Error (Avg)
232243kB 17806.25 17886.84 0.45% 17977.50 18043.33 0.50% 17930.00 17999.40 0.39%
437862kB 15531.25 15591.40 0.39% 15773.75 15839.00 1.16% 15713.25 15778.52 0.42%
643481kB 17090.00 17156.25 0.39% 17683.75 17750.01 2.98% 17578.62 17649.79 0.40%
849100kB 16781.25 16858.61 0.46% 17206.25 17284.69 2.02% 16915.50 16985.05 0.41%

Verification of Group MEM with Test copy

Benchmark performed with data sizes: 232243kB, 437862kB, 643481kB, 849100kB.

Each data size is tested 10 times, hence the first 10 entries on the x-axis correspond to the 10 runs for the first data size of 232243kB and so on.

ivybridgeEP_MEM_copy

The table contains the values after scaling the original values up using the scaling factor 1.50. The table entries for BENCH and LIKWID have the unit 'MByte/s'

Variant BENCH (Min) LIKWID (Min) Error (Min) BENCH (Max) LIKWID (Max) Error (Max) BENCH (Avg) LIKWID (Avg) Error (Avg)
232243kB 20530.50 20610.66 0.39% 20707.50 20769.08 0.47% 20652.15 20718.22 0.32%
437862kB 19567.50 19647.56 0.41% 19722.00 19789.12 0.38% 19686.45 19754.80 0.35%
643481kB 20428.50 20515.79 0.43% 20598.00 20665.60 0.40% 20527.95 20601.54 0.36%
849100kB 19608.00 19693.48 0.44% 19878.00 19943.46 0.93% 19737.15 19806.24 0.35%

Verification of Group MEM with Test stream

Benchmark performed with data sizes: 232243kB, 437862kB, 643481kB, 849100kB.

Each data size is tested 10 times, hence the first 10 entries on the x-axis correspond to the 10 runs for the first data size of 232243kB and so on.

ivybridgeEP_MEM_stream

The table contains the values after scaling the original values up using the scaling factor 1.33. The table entries for BENCH and LIKWID have the unit 'MByte/s'

Variant BENCH (Min) LIKWID (Min) Error (Min) BENCH (Max) LIKWID (Max) Error (Max) BENCH (Avg) LIKWID (Avg) Error (Avg)
232243kB 17022.24 17085.62 0.37% 17199.57 17248.57 0.66% 17113.31 17168.39 0.32%
437862kB 18611.53 18683.46 0.39% 18806.20 18864.35 0.65% 18736.33 18795.05 0.31%
643481kB 18678.20 18751.00 0.39% 18887.53 18938.30 0.72% 18805.00 18863.17 0.31%
849100kB 16987.58 17055.59 0.40% 17236.90 17288.83 1.05% 17119.44 17184.89 0.38%

Verification of Group MEM with Test store

Benchmark performed with data sizes: 232243kB, 437862kB, 643481kB, 849100kB.

Each data size is tested 10 times, hence the first 10 entries on the x-axis correspond to the 10 runs for the first data size of 232243kB and so on.

ivybridgeEP_MEM_store

The table contains the values after scaling the original values up using the scaling factor 2.00. The table entries for BENCH and LIKWID have the unit 'MByte/s'

Variant BENCH (Min) LIKWID (Min) Error (Min) BENCH (Max) LIKWID (Max) Error (Max) BENCH (Avg) LIKWID (Avg) Error (Avg)
232243kB 19906.00 19986.06 0.40% 20074.00 20140.68 0.44% 19978.80 20053.09 0.37%
437862kB 19890.00 19970.40 0.40% 20128.00 20186.19 0.78% 20056.60 20118.25 0.31%
643481kB 19974.00 20052.42 0.39% 20170.00 20228.85 0.58% 20069.40 20139.91 0.35%
849100kB 19966.00 20048.62 0.41% 20176.00 20235.71 0.63% 20080.00 20150.37 0.35%
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