Bug 782 - FFTW Calibration program
Summary: FFTW Calibration program
Status: ASSIGNED
Alias: None
Product: BpmCount
Classification: Unclassified
Component: Packaging (show other bugs)
Version: 0.1
Hardware: PC Linux
: Future normal
Assignee: greg elliott
URL:
Depends on:
Blocks:
 
Reported: 2008-08-31 18:54 CEST by Werner Van Belle
Modified: 2008-08-31 20:23 CEST (History)
1 user (show)

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Comment 2 Werner Van Belle 2008-08-31 20:23:50 CEST 
Yes that seems to be the case. The apparant problem now is of course that we cannot calibrate the library since we do not know the file sizes. This is however normally not a problem since the FFTW library actually will measure powers of two. So if we would set up a program in which we simply plan for sizes

1024
2048
4096
8192
up to something around 60'000'000 or so
and then save the wisdom file then the library would work quite fast in all situations.
Comment 1 greg elliott 2008-08-31 20:17:36 CEST 
(In reply to comment #0)
> Something we discussed a hile ago was the possibility to use an fftw
> calibration program that will calibrate the library before using it. This will
> solve the bug that the library appears to hang.
> 

is the calibration occurring in bpmCounter::createFFTWPlans?
Description Werner Van Belle 2008-08-31 18:54:56 CEST 
Something we discussed a hile ago was the possibility to use an fftw calibration program that will calibrate the library before using it. This will solve the bug that the library appears to hang.