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Computation Error With Optimized Apps
Urs Echternacht:
My testruns with the different SSE2 AstroPulse applications (prerelease and release) just finished. The results are different.
add: Send Crunch3r a pm about the testresults.
[attachment deleted by admin]
Lysia:
The release apps are much faster than the prerelease (both SSE2 and SSE3). Both prerelease apps are at 1550m CPU-Time now, which is more than the release-apps took and they still did not find the pulses at <dm>-14010</dm> yet.
Because the results of the SSE2-app are quite random, I would guess at least some memory initialization has been "optimized" away.
PatrickV2:
I guess I'm a bit late to the party here, but it's only recently that I noticed that a Linux machine of mine was _very_ quickly processing away the astropulse units it got (the machine is mostly unattended, so I didn't notice this immediately).
All of them finished within about 15 seconds max. The log from one of these:
<core_client_version>6.4.5</core_client_version>
<![CDATA[
<message>
process exited with code 193 (0xc1, -63)
</message>
<stderr_txt>
In ap_gfx_main.cpp: in ap_graphics_init(): Starting client.
AstroPulse v. 5.03
Linux 32 bit
FFTW USE_CONVERSION_OPT USE_SSE2->SSE3_EMU
SIGILL: illegal instruction
Stack trace (7 frames):
[0x80797d4]
[0xb7f62400]
[0x8059020]
[0x8049e14]
[0x8048d58]
[0x8217824]
[0x8048131]
Exiting...
</stderr_txt>
]]>
(Link: http://setiathome.berkeley.edu/result.php?resultid=1192493744)
I'm quite (but not 100%) sure I installed the SSE2 apps. I have now installed the SSE apps, but have to wait until an ap unit is going to be crunched, to see if this fixed it...
Regards, Patrick.
Urs Echternacht:
--- Quote from: PatrickV2 on 01 Apr 2009, 01:14:22 pm ---[size=0]I guess I'm a bit late to the party here, but it's only recently that I noticed that a Linux machine of mine was _very_ quickly processing away the astropulse units it got (the machine is mostly unattended, so I didn't notice this immediately).
All of them finished within about 15 seconds max. The log from one of these:
<core_client_version>6.4.5</core_client_version>
<![CDATA[
<message>
process exited with code 193 (0xc1, -63)
</message>
<stderr_txt>
In ap_gfx_main.cpp: in ap_graphics_init(): Starting client.
AstroPulse v. 5.03
Linux 32 bit
FFTW USE_CONVERSION_OPT USE_SSE2->SSE3_EMU
SIGILL: illegal instruction
Stack trace (7 frames):
[0x80797d4]
[0xb7f62400]
[0x8059020]
[0x8049e14]
[0x8048d58]
[0x8217824]
[0x8048131]
Exiting...
</stderr_txt>
]]>
(Link: http://setiathome.berkeley.edu/result.php?resultid=1192493744)
I'm quite (but not 100%) sure I installed the SSE2 apps. I have now installed the SSE apps, but have to wait until an ap unit is going to be crunched, to see if this fixed it...
Regards, Patrick.[/size]
--- End quote ---
Patrick, thanks for reporting your problem. I colorized the part in the quoted output of your post that identifies the AstroPulse SSE2 application version in question. This is the bad one definitely. To use the SSE version until this problem gets resolved is recommended.
Claggy:
--- Quote from: Urs Echternacht on 01 Apr 2009, 03:17:47 pm ---
--- Quote from: PatrickV2 on 01 Apr 2009, 01:14:22 pm ---[size=0]I guess I'm a bit late to the party here, but it's only recently that I noticed that a Linux machine of mine was _very_ quickly processing away the astropulse units it got (the machine is mostly unattended, so I didn't notice this immediately).
All of them finished within about 15 seconds max. The log from one of these:
<core_client_version>6.4.5</core_client_version>
<![CDATA[
<message>
process exited with code 193 (0xc1, -63)
</message>
<stderr_txt>
In ap_gfx_main.cpp: in ap_graphics_init(): Starting client.
AstroPulse v. 5.03
Linux 32 bit
FFTW USE_CONVERSION_OPT USE_SSE2->SSE3_EMU
SIGILL: illegal instruction
Stack trace (7 frames):
[0x80797d4]
[0xb7f62400]
[0x8059020]
[0x8049e14]
[0x8048d58]
[0x8217824]
[0x8048131]
Exiting...
</stderr_txt>
]]>
(Link: http://setiathome.berkeley.edu/result.php?resultid=1192493744)
I'm quite (but not 100%) sure I installed the SSE2 apps. I have now installed the SSE apps, but have to wait until an ap unit is going to be crunched, to see if this fixed it...
Regards, Patrick.[/size]
--- End quote ---
Patrick, thanks for reporting your problem. I colorized the part in the quoted output of your post that identifies the AstroPulse SSE2 application version in question. This is the bad one definitely. To use the SSE version until this problem gets resolved is recommended.
--- End quote ---
Speedimic and Officedude both had this error about 15 days ago on hosts 4462906 and 3370265, Speedimic tried to redownload the same SSE2 app,
but the link was Broken by then, suspect that might have been from Lunatics, Both have swapped to the SSE app.
Claggy
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