Hi Bill and all,
Perhaps you already tried jt9_omp in Linux, but I had not. I tried it
today, and it seems to work OK, as is.
Here are some timing tests made on my rather elderly 2-core Linux
machine. This time all tests were made with the "Deepest" setting,
ndepth=3, and all resulted in 17 good decodes of the sample file
130610_2343.wav. To get the times I measured "real" time to execute jt9
or jt9_omp from the command-prompt.
Program Version Params Time
(s)
------------------------------------
jt9 v1.3 r3673 2.467
jt9 v1.4.0-rc2, r4400 2.658
jt9 v1.5 r4926 -w 1 -m 1 1.243
jt9 v1.5 r4926 -w 2 -m 1 1.202
jt9 v1.5 r4926 -w 2 -m 2 1.140
jt9_omp v1.5 r4926 -w 2 -m 1 0.834
jt9_omp v1.5 r4926 -w 2 -m 2 0.843
When jt9_omp is used it's better *not* to use the multi-threaded FFTW
plans, at least on this 2-core machine. The two cores are already being
used effectively by running the two big FFTs concurrently.
For interest, here are the actual outputs of a pair of timing runs with
jt9 and jt9_omp. Note that the decoded lines are the same, but JT65
lines are intermingled with JT9 lines. (I like the original ordering
better -- first the one at the decode frequency; then others in the same
mode in order of increasing frequancy; then thos in the other mode,
again in order of increasing frequancy. With effort, I guess we could
have it both ways by letting the GUI insert decodes (after the first
one) in the "proper" place in the sequence.)
#########################################################################
$ time jt9 -p 1 -d 3 -w 2 -m 1 130610_2343.wav > junk
2343 -9 0.3 3196 @ WB8QPG IZ0MIT -11
2343 -18 1.0 3372 @ KK4HEG KE0CO CN87
2343 14 0.1 3490 @ CQ AG4M EM75
2343 -20 -1.3 3567 @ CQ TA4A KM37
2343 -15 0.1 3627 @ CT1FBK IK5YZT R+02
2343 -23 0.3 3721 @ KF5SLN KB1SUA FN42
2343 -16 0.2 3774 @ CQ M0ABA JO01
2343 -2 0.2 3843 @ EI3HGB DD2EE JO31
2343 -20 0.3 718 # VE6WQ SQ2NIJ -14
2343 -7 0.3 815 # KK4DSD W7VP -16
2343 -10 0.5 975 # CQ DL7ACA JO40
2343 -9 0.8 1089 # N2SU W0JMW R-14
2343 -11 0.8 1259 # YV6BFE F6GUU R-08
2343 -9 1.7 1471 # VA3UG F1HMR 73
2343 -1 0.6 1718 # BG THX JOE 73
2343 -15 1.3 1951 # RA3Y VE3NLS 73
2343 -20 0.4 2065 # K2OI AJ4UU R-20
<DecodeFinished> 0 1
real 0m1.196s
user 0m1.157s
sys 0m0.037s
$ time jt9_omp -p 1 -d 3 -w 2 -m 1 130610_2343.wav > junk
2343 -20 0.3 718 # VE6WQ SQ2NIJ -14
2343 -9 0.3 3196 @ WB8QPG IZ0MIT -11
2343 -7 0.3 815 # KK4DSD W7VP -16
2343 -18 1.0 3372 @ KK4HEG KE0CO CN87
2343 -10 0.5 975 # CQ DL7ACA JO40
2343 -9 0.8 1089 # N2SU W0JMW R-14
2343 -11 0.8 1259 # YV6BFE F6GUU R-08
2343 -9 1.7 1471 # VA3UG F1HMR 73
2343 14 0.1 3490 @ CQ AG4M EM75
2343 -20 -1.3 3567 @ CQ TA4A KM37
2343 -15 0.1 3627 @ CT1FBK IK5YZT R+02
2343 -23 0.3 3721 @ KF5SLN KB1SUA FN42
2343 -16 0.2 3774 @ CQ M0ABA JO01
2343 -1 0.6 1718 # BG THX JOE 73
2343 -15 1.3 1951 # RA3Y VE3NLS 73
2343 -2 0.2 3843 @ EI3HGB DD2EE JO31
2343 -20 0.4 2065 # K2OI AJ4UU R-20
<DecodeFinished> 0 1
real 0m0.806s
user 0m1.260s
sys 0m0.055s
#########################################################################
In its present state the jt9_omp code does not run in Windows. I
haven't yet determined why.
-- Joe, K1JT
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