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escj
Joined: 30 Sep 2009
Posts: 37
Location: Laboratoire d'Aérologie, Toulouse, FRANCE
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 Posted: Tue Feb 05, 2013 9:18 am Post subject: with pgi/13.1 -ta=nvidia,time not working any more ! |
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Hello .
I've installed the last pgi/13.1 .
The timing option for accelerator -ta=nvidia,time doesn't work any more <=> doesn't give kernel timing ...
For examples with the samples accel coming with PGI .
| Code: |
pgfortran --version
pgfortran 13.1-1 64-bit target on x86-64 Linux -tp nehalem
pwd
/home/escj/dir_PGF/PGI_HOME/linux86-64/13.1/etc/samples/accel
make f3.time
...
f3.time
0 errors found
58859 microseconds on GPU
71 microseconds on host
#Here NO timing !!!
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The timing comeback setting the PGI_ACC_TIME=1 but it is not the expected functionality .
| Code: | export PGI_ACC_TIME=1
f3.time
0 errors found
61636 microseconds on GPU
71 microseconds on host
Accelerator Kernel Timing data
/home/escj/dir_PGF/PGI_HOME/linux86-64/13.1/etc/samples/accel/f3.f90
smooth NVIDIA devicenum=0
time(us): 323
24: data copyin reached 2 times
device time(us): total=52 max=28 min=24 avg=26
28: kernel launched 5 times
...
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A+
Juan |
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mkcolg
Joined: 30 Jun 2004
Posts: 4996
Location: The Portland Group Inc.
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| Posted: Tue Feb 05, 2013 9:48 am Post subject: |
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Hi Juan,
| Quote: | | The timing option for accelerator -ta=nvidia,time doesn't work any more <=> doesn't give kernel timing ... |
Correct. The "time" sub-option was deprecated in 12.x in favor of the "PGI_ACC_TIME" environment variable, and removed in 13.1 as we start to provide for support for more target devices beyond NVIDIA. The environment allows for more flexibility and does not require a recompile in order to enable/disable profiling.
- Mat |
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escj
Joined: 30 Sep 2009
Posts: 37
Location: Laboratoire d'Aérologie, Toulouse, FRANCE
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| Posted: Wed Feb 06, 2013 9:15 am Post subject: |
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Ok mat ...
( ... but the doc, man pgfortran or pgi131ug/rf.pdf doesn't indicate deprecated a feature )
A+
Juan |
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