I sent this in via HTML and it got blocked...so here it is plain text...
Mike W9MDB
Did a 20-pass run on the last two versions of interest - I have a dual
4-Core CPU so apparently would have 8 threads available on 4928 cut to 2
threads on 4930. So an ever so slight improvement with 1 thread..2 threads
got worse though but they were already worse to start with.
Col1 = TimeMem-1.0.exe jt9_omp -p 1 -d 3 -w 2 -m 1 130610_2343.wav | grep
Elapsed | cut -f2 -d:
Col2 = TimeMem-1.0.exe jt9_omp -p 1 -d 3 -w 2 -m 2 130610_2343.wav | grep
Elapsed | cut -f2 -d:
Thread 1 2 %Diff
4928 1.13 1.14 -0.88%
1.08 1.13 -4.63%
1.1 1.2 -9.09%
1.1 1.13 -2.73%
1.19 1.19 0.00%
1.12 1.1 1.79%
1.1 1.14 -3.64%
1.08 1.13 -4.63%
1.11 1.18 -6.31%
1.1 1.12 -1.82%
1.09 1.12 -2.75%
1.1 1.13 -2.73%
1.09 1.18 -8.26%
1.1 1.12 -1.82%
1.09 1.17 -7.34%
1.08 1.2 -11.11%
1.09 1.31 -20.18%
1.11 1.23 -10.81%
1.1 1.24 -12.73%
1.09 1.19 -9.17%
Average 1.1025 1.1675 -5.94%
Thread 1 2 %Diff
4930 1.1 1.28 -16.36%
1.08 1.21 -12.04%
1.08 1.2 -11.11%
1.1 1.22 -10.91%
1.08 1.23 -13.89%
1.08 1.22 -12.96%
1.09 1.22 -11.93%
1.07 1.23 -14.95%
1.09 1.23 -12.84%
1.13 1.22 -7.96%
1.09 1.22 -11.93%
1.08 1.22 -12.96%
1.08 1.25 -15.74%
1.08 1.22 -12.96%
1.11 1.24 -11.71%
1.09 1.22 -11.93%
1.11 1.24 -11.71%
1.1 1.22 -10.91%
1.08 1.2 -11.11%
1.09 1.2 -10.09%
Average 1.0905 1.2245 -12.30%
-----Original Message-----
From: Bill Somerville [mailto:g4...@classdesign.com]
Sent: Wednesday, February 04, 2015 9:31 AM
To: wsjt-devel@lists.sourceforge.net
Subject: Re: [wsjt-devel] WSJT-X Decoder Performance
On 04/02/2015 15:27, Joe Taylor wrote:
> Hi Bill,
Hi Joe,
>
> OK, by all means go ahead.
>
> BTW: I notice that jt9_omp.exe r4929 always runs with 4 threads on my
> 4-core machine. Since we have only two tasks running in parallal, I
> can see little reason to use more than 2 threads. Should we specify
> two threads explicitly?
Yes, I have addressed that as well.
>
> -- Joe
73
Bill
G4WJS.
>
> On 2/4/2015 10:24 AM, Bill Somerville wrote:
>> On 04/02/2015 15:21, Joe Taylor wrote:
>>> Hi Bill and all,
>> Hi Joe,
>>
>> <snip>
>>> Note that decoder.f90 now decodes the two modes in parallel sections
>>> *ONLY* if txmode is JT9. I will fix this.
>> Joe, I already have this in hand, I can check it in if you wish.
>>
>> <snip>
>>> -- Joe
>> 73
>> Bill
>> G4WJS.
>>
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Dive into the World of Parallel Programming. The Go Parallel Website,
sponsored by Intel and developed in partnership with Slashdot Media, is your
hub for all things parallel software development, from weekly thought
leadership blogs to news, videos, case studies, tutorials and more. Take a
look and join the conversation now. http://goparallel.sourceforge.net/
_______________________________________________
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https://lists.sourceforge.net/lists/listinfo/wsjt-devel
------------------------------------------------------------------------------
Dive into the World of Parallel Programming. The Go Parallel Website,
sponsored by Intel and developed in partnership with Slashdot Media, is your
hub for all things parallel software development, from weekly thought
leadership blogs to news, videos, case studies, tutorials and more. Take a
look and join the conversation now. http://goparallel.sourceforge.net/
_______________________________________________
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