Author Topic: Precise Function produces sometimes many 100% results for any file  (Read 75201 times)

Springdream

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Precise Function produces sometimes many 100% results for any file
« Reply #225 on: April 10, 2011, 15:22:36 »
Sometimes I get far to many results (e.g. 10000 files with 300000 results for identical files).
It looks likes that for a certain time period file comparison with "precise" returns very quickly 100% instead of really comparing the files.
Maybe it is related to CUDA?

hsei

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When you enabled OpenCL in the corresponding options tap you better start a benchmark run first. I got an "calculation error" (AMD/ATI 5570) and most comparison results gave false 100% indication.
Only way out in this case: Switch off OpenCL (CUDA).

Admin

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Yes, in beta version please use "benchmark" button to check correct calculation, we add warning before enabling OpenCL without checking.
And use latest beta version we corrected behaviour with old/low-end ATI videocards.

Springdream

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well I was using a MSI card with Nvidia GTX460, the same card that was used for your tutorial...
I get no error and Benchmark is fine...
Also an indicator for developers: the result returns much faster than the normal calculation result...

Springdream

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in the log I get:
CIppsVector::insert:244 failed [false]
quite often
maybe it is related to it?

Admin

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Sometimes I get far to many results (e.g. 10000 files with 300000 results for identical files).
It looks likes that for a certain time period file comparison with "precise" returns very quickly 100% instead of really comparing the files.
Maybe it is related to CUDA?
How much RAM memory do you have ? And how much files do you scan ?
This issue related to "no memory" problem.

Springdream

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Memory is 2GB, Files approx 120.000
If it is a memory problem, shoulds similarity tell me?

Admin

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Could you, please, send us your logs for detailed analysis.