Discussion:
[Bug 100199] clover: implement non-blocking clEnqueueWriteBuffer and clEnqueueReadBuffer
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b***@freedesktop.org
2017-03-14 15:31:26 UTC
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https://bugs.freedesktop.org/show_bug.cgi?id=100199

Bug ID: 100199
Summary: clover: implement non-blocking clEnqueueWriteBuffer
and clEnqueueReadBuffer
Product: Mesa
Version: git
Hardware: Other
OS: All
Status: NEW
Severity: normal
Priority: medium
Component: Other
Assignee: mesa-***@lists.freedesktop.org
Reporter: ***@miletic.net
QA Contact: mesa-***@lists.freedesktop.org

Right now most of the transfer functions do something roughly in between
blocking and non-blocking transfers, and blocking boolean parameter is ignored.
We should implement support for non-blocking transfer and clearly separate the
two.
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b***@freedesktop.org
2017-03-14 15:31:38 UTC
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https://bugs.freedesktop.org/show_bug.cgi?id=100199

Vedran Miletić <***@miletic.net> changed:

What |Removed |Added
----------------------------------------------------------------------------
Assignee|mesa-***@lists.freedesktop. |***@miletic.net
|org |
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b***@freedesktop.org
2017-03-14 15:42:28 UTC
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https://bugs.freedesktop.org/show_bug.cgi?id=100199

--- Comment #1 from Vedran Miletić <***@miletic.net> ---
Created attachment 130217
--> https://bugs.freedesktop.org/attachment.cgi?id=130217&action=edit
Attempt at a fix
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b***@freedesktop.org
2017-03-14 17:55:58 UTC
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https://bugs.freedesktop.org/show_bug.cgi?id=100199

--- Comment #2 from Vedran Miletić <***@miletic.net> ---
Benchmarking ftp://ftp.gromacs.org/pub/benchmarks/water_GMX50_bare.tar.gz with
GROMACS 2016.3 I get the following results:

Without the patch:
Launch GPU ops. 1 8 66001 16.905 460.911 67.1
Wait GPU local 1 8 66001 2.569 70.041 10.2
Launch GPU ops. 1 8 66001 20.110 548.283 65.2
Wait GPU local 1 8 66001 2.586 70.511 8.4
Launch GPU ops. 1 8 33001 10.902 297.224 61.0
Wait GPU local 1 8 33001 1.309 35.695 7.3
Launch GPU ops. 1 8 16001 6.460 176.126 54.4
Wait GPU local 1 8 16001 0.642 17.499 5.4
Launch GPU ops. 1 8 8001 4.624 126.062 47.7
Wait GPU local 1 8 8001 0.361 9.833 3.7
Launch GPU ops. 1 8 4001 3.471 94.623 39.5
Wait GPU local 1 8 4001 0.246 6.699 2.8
Launch GPU ops. 1 8 2001 3.648 99.469 38.5
Wait GPU local 1 8 2001 0.185 5.054 2.0
Launch GPU ops. 1 8 1001 3.396 92.583 35.5
Wait GPU local 1 8 1001 0.106 2.902 1.1
Launch GPU ops. 1 8 501 6.106 166.478 46.2
Wait GPU local 1 8 501 0.064 1.745 0.5
Launch GPU ops. 1 8 251 4.909 133.845 35.1
Wait GPU local 1 8 251 0.040 1.089 0.3
Launch GPU ops. 1 8 126 3.936 107.314 26.5
Wait GPU local 1 8 126 0.021 0.576 0.1
Launch GPU ops. 1 8 66 3.314 90.362 18.5
Wait GPU local 1 8 66 0.011 0.296 0.1
Launch GPU ops. 1 8 34 3.139 85.581 14.4
Wait GPU local 1 8 34 0.005 0.144 0.0

With the patch:
Launch GPU ops. 1 8 66001 18.298 498.894 66.8
Wait GPU local 1 8 66001 2.519 68.691 9.2
Launch GPU ops. 1 8 66001 22.010 600.094 66.4
Wait GPU local 1 8 66001 2.543 69.343 7.7
Launch GPU ops. 1 8 33001 11.510 313.821 60.9
Wait GPU local 1 8 33001 1.261 34.368 6.7
Launch GPU ops. 1 8 16001 6.928 188.899 56.0
Wait GPU local 1 8 16001 0.626 17.077 5.1
Launch GPU ops. 1 8 8001 4.850 132.245 48.3
Wait GPU local 1 8 8001 0.350 9.531 3.5
Launch GPU ops. 1 8 4001 3.657 99.696 40.2
Wait GPU local 1 8 4001 0.272 7.415 3.0
Launch GPU ops. 1 8 2001 3.791 103.350 38.9
Wait GPU local 1 8 2001 0.191 5.202 2.0
Launch GPU ops. 1 8 1001 3.514 95.813 36.0
Wait GPU local 1 8 1001 0.106 2.886 1.1
Launch GPU ops. 1 8 501 6.102 166.361 46.0
Wait GPU local 1 8 501 0.063 1.716 0.5
Launch GPU ops. 1 8 251 4.936 134.578 35.1
Wait GPU local 1 8 251 0.040 1.086 0.3
Launch GPU ops. 1 8 126 3.941 107.435 26.5
Wait GPU local 1 8 126 0.021 0.559 0.1
Launch GPU ops. 1 8 66 3.335 90.920 18.3
Wait GPU local 1 8 66 0.011 0.297 0.1
Launch GPU ops. 1 8 34 3.173 86.500 14.6
Wait GPU local 1 8 34 0.005 0.147 0.0

So it's not an improvement.
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b***@freedesktop.org
2017-08-12 09:01:46 UTC
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Janpieter Sollie <***@dommel.be> changed:

What |Removed |Added
----------------------------------------------------------------------------
See Also| |https://bugs.freedesktop.or
| |g/show_bug.cgi?id=102179
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b***@freedesktop.org
2017-08-23 11:50:01 UTC
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Vedran Miletić <***@miletic.net> changed:

What |Removed |Added
----------------------------------------------------------------------------
Summary|clover: implement |[performance] clover:
|non-blocking |implement non-blocking
|clEnqueueWriteBuffer and |clEnqueueWriteBuffer and
|clEnqueueReadBuffer |clEnqueueReadBuffer
Blocks| |99553


Referenced Bugs:

https://bugs.freedesktop.org/show_bug.cgi?id=99553
[Bug 99553] Tracker bug for runnning OpenCL applications on Clover
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