Mark 6 performance

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    Combined revision comparison

    Comparing version 11:31, 18 Sep 2023 by jwagner with version 11:36, 18 Sep 2023 by jwagner.

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     EHT e22c20 correlation test

    Testing also carried out at Bonn with e22c20 b4 scans 1026, 1033, 1070 etc under DiFX 2.8.1.1070.

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    e22c20-1-b4_1019 : 748.983 sec, 12.6x slowdown, MpiDone
    e22c20-1-b4_1026 : 165.502 sec, 2.6x slowdown, MpiDone
    e22c20-1-b4_1033 : 147.769 sec, 2.5x slowdown, MpiDone
    e22c20-1-b4_1070 : 2267.63 sec, 7.6x slowdown, MpiDone

    2. run: 3.2 ms subint (EHT default), 20 buffered FFTs

    e22c20-1-b4_1019 : 507.172 sec, 8.5x slowdown, MpiDone
    e22c20-1-b4_1026 : 120.792 sec, 1.9x slowdown, MpiDone
    e22c20-1-b4_1033 : 100.509 sec, 1.7x slowdown, MpiDone
    e22c20-1-b4_1070 : 1522.75 sec, 5.1x slowdown, MpiDone

    3. run: 8.0 ms subint, 20 buffered FFTs

    e22c20-1-b4_1019 : 362.91 sec, 6.1x slowdown, MpiDone
    e22c20-1-b4_1026 : 89.3295 sec, 1.4x slowdown, MpiDone
    e22c20-1-b4_1033 : 78.328 sec, 1.3x slowdown, MpiDone
    e22c20-1-b4_1070 : 1048.75 sec, 3.5x slowdown, MpiDone

    4. run: 40.0 ms subint, 20 buffered FFTs

    e22c20-1-b4_1019 : 264.533 sec, 4.4x slowdown, MpiDone
    e22c20-1-b4_1026 : 74.2592 sec, 1.1x slowdown, MpiDone
    e22c20-1-b4_1033 : 67.7457 sec, 1.1x slowdown, MpiDone
    e22c20-1-b4_1070 : 780.338 sec, 2.6x slowdown, MpiDone

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    Version from 11:31, 18 Sep 2023

    This revision modified by jwagner (Ban)

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    Testing also carried out at Bonn with e22c20 b4 scans 1026, 1033, 1070. The number of nodes was kept constant. Only v2d SETUP numBufferedFFTs and subintNS were altered.

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    Version as of 11:36, 18 Sep 2023

    This revision modified by jwagner (Ban)

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    EHT e22c20 correlation test

    Testing also carried out at Bonn with e22c20 b4 scans 1026, 1033, 1070 etc under DiFX 2.8.1.

    ...

    e22c20-1-b4_1019 : 748.983 sec, 12.6x slowdown, MpiDone
    e22c20-1-b4_1026 : 165.502 sec, 2.6x slowdown, MpiDone
    e22c20-1-b4_1033 : 147.769 sec, 2.5x slowdown, MpiDone
    e22c20-1-b4_1070 : 2267.63 sec, 7.6x slowdown, MpiDone

    2. run: 3.2 ms subint (EHT default), 20 buffered FFTs

    e22c20-1-b4_1019 : 507.172 sec, 8.5x slowdown, MpiDone
    e22c20-1-b4_1026 : 120.792 sec, 1.9x slowdown, MpiDone
    e22c20-1-b4_1033 : 100.509 sec, 1.7x slowdown, MpiDone
    e22c20-1-b4_1070 : 1522.75 sec, 5.1x slowdown, MpiDone

    3. run: 8.0 ms subint, 20 buffered FFTs

    e22c20-1-b4_1019 : 362.91 sec, 6.1x slowdown, MpiDone
    e22c20-1-b4_1026 : 89.3295 sec, 1.4x slowdown, MpiDone
    e22c20-1-b4_1033 : 78.328 sec, 1.3x slowdown, MpiDone
    e22c20-1-b4_1070 : 1048.75 sec, 3.5x slowdown, MpiDone

    4. run: 40.0 ms subint, 20 buffered FFTs

    e22c20-1-b4_1019 : 264.533 sec, 4.4x slowdown, MpiDone
    e22c20-1-b4_1026 : 74.2592 sec, 1.1x slowdown, MpiDone
    e22c20-1-b4_1033 : 67.7457 sec, 1.1x slowdown, MpiDone
    e22c20-1-b4_1070 : 780.338 sec, 2.6x slowdown, MpiDone

    ...