Help Please if poss - intel gpu & sieve
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Message boards : Number crunching : Help Please if poss - intel gpu & sieve

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corris
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Message 21379 - Posted: 30 Sep 2015, 20:35:43 UTC

Hello



Moved from running mini ok to sieve with 100% error rate



My rather olde setup:-

win7 pro 64bit intel i5-3230M cpu on intel HD Graphics 4000 (1624MB) OpenCL: 1.01

boinc version 7.6.9

installed vcredist_x64.exe & vcredist_x86.exe for ms c++ runtime (got these from a search of the net) no idea if they are correct or not

created .....<app>.config for both 64 and 32 as:
verbose=1
kernels_per_reduction=48
threads=6
lut_size=12
sleep=1
reduce_cpu=0
sieve_size=26




Tried different parameters in above files with no success







Either I am doing something wrong that is blindingly obvious to all but a lamebrain (me), or else sieve will not work on such intel gpu





Is anyone able / willing to advise?

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Message 21381 - Posted: 1 Oct 2015, 14:45:38 UTC - in response to Message 21379.

It would at least log the version (e.g. Windows x86_64 for OpenCL) in the log file if ran at all. It isn't even getting to where it can read the config. That means it is the C++ runtime. Install both the 32 and 64 bit versions since BOINC will run both apps until it learns that the 64 bit app is faster. (Expect it to learn very, very slowly.)

https://www.microsoft.com/en-us/download/details.aspx?id=30679

After installing, reboot.

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Message 21384 - Posted: 2 Oct 2015, 6:07:42 UTC - in response to Message 21381.

RightO, I re-installed the 2 files (or repaired the installation according to the installer), and now got a sieve to work....

Seems that the first time I installed failed even though installer reported success


Thanks, hopefully now all ok


Thanks again


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