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drummers-lowrise
1) Message boards : Aggie The Pew message board (Message 74678)
Posted 2747 days ago by Prime Al ScreenProject donor
I would want to run the I7 with llr as it runs too hot.


I never run stock cooling on my crunching computers. I run either massive air coolers but mostly liquid cooled.
I keep my i7s below 70C.

Currently I have 2 llrs running so ksensors temp reports are typically bouncing around between 70oC to 87oC. Some of that is scheduling and perhaps turbo boosting. I don't remove hyperthreading (other projects do benefit from that). This Haswell system actually uses an all in one liquid cooled (don't know what kit) but that is not that effective running llrs. But, again, not surprising given the tech reviews and comments on overclocking Haswell cpus.
2) Message boards : Aggie The Pew message board (Message 74624)
Posted 2748 days ago by Prime Al ScreenProject donor
For Science:
Stock processors with no overclocking and boinc set to use 50% of processors (so some tasks may turbo boost at times)
Median time in hours per WU
i7-4770K @ 3.50GHz : 57.75 E5-2643 @ 3.30GHz : 72.39 E5-2687W v2 @ 3.40GHz : 65.08

The two Xeon E5's are dual processor workstations and these really handled the challenge nicely. Not sure I would want to run the I7 with llr as it runs too hot. Knew that these newer Intel cpus have thermal issues with overclocking but didn't expect it as bad as here.

3) Message boards : Aggie The Pew message board (Message 74560)
Posted 2749 days ago by Prime Al ScreenProject donor
A superb late charge by Al. Can Bart rein him in?

I'm done with a few late ones. I had been micromanaging them to squeeze a few more out since I started late.
4) Message boards : Number crunching : FMA3 LLR Testing Thread (Message 74489)
Posted 2751 days ago by Prime Al ScreenProject donor

All of the Linux FMA3 manual prime tests are already done (see this Google Drive spreadsheet), but nobody is doing the BOINC tests for Linux FMA3 yet.


Not what I am seeing now or before.
Perhaps you need to update the spreadsheet so everyone can see what you see.

Toms, Anand and other sites have explained the heat issue that you describe. It was an observation of llr versions on the same host at the same time measured by the same tool so it not relevant to the cpu heatsink or measurement of said temperature.
5) Message boards : Number crunching : FMA3 LLR Testing Thread (Message 74483)
Posted 2751 days ago by Prime Al ScreenProject donor
FMA3 tasks really, really run extremely hot! Compared to current BOINC app I get about 10oC increase in CPU temps and thermal warnings. This is possibly due to turbo boosting and the known cooling issues of these cpus. So I would not recommend this FMA3 version.

Linux 64bit i7-4770K CPU @ 3.50GHz host using the downloaded static version for the short tests. I will do the 2 SR5 tests but the remaining 2 will depend on challenge progress.

Starting Proth prime test of 2163*2^1255556+1 2163*2^1255556+1 is prime! (377964 decimal digits) Time : 387.274 sec.

Base factorized as : 2^2*17 Base prime factor(s) taken : 17 Starting N-1 prime test of 129897*68^129897+1 129897*68^129897+1 may be prime, trying to compute gcd's 3^((N-1)/17)-1 is coprime to N! 129897*68^129897+1 is prime! (238043 decimal digits) Time : 262.580 sec.

Starting Lucas Lehmer Riesel prime test of 1300274732577*2^1290000-1 Using zero-padded FMA3 FFT length 128K, Pass1=512, Pass2=256 1300274732577*2^1290000-1 is prime! (388341 decimal digits) Time : 540.096 sec.

Base prime factor(s) taken : 11 Starting N+1 prime test of 94112*121^94112-1 94112*121^94112-1 may be prime. Starting Lucas sequence... 94112*121^94112-1 may be prime, trying to compute gcd's Restarting Lucas sequence with P = 8 94112*121^94112-1 may be prime, trying to compute gcd's Restarting Lucas sequence with P = 9 94112*121^94112-1 may be prime, trying to compute gcd's U((N+1)/11) is coprime to N! 94112*121^94112-1 is prime! (196021 decimal digits, P = 9) Time : 1827.015 sec.
6) Message boards : Aggie The Pew message board (Message 74437)
Posted 2752 days ago by Prime Al ScreenProject donor
Prime Al Scream is kicking a$$. RAC of 18,983.78 !!!

Sorry, I thought it was 1.8 million when I posted the above. <turning red>

He's still kicking COW a$$!

Edited as those cows just too slow!

Anyhow, just wanted to see how the new Xeon cpus handles AVX! Just wish my real programs used it. Got to say the lack of decibels is rather impressive for these Sandy and Ivy Bridge Xeons (won't talk about the previous Xeon that got too hot to run more than 4 non-AVX WUs at once). Ivy bridge (median time is 65 hrs) is about finishing about 8 hours faster than Sandy bridge on work complete (the difference is 6 hrs for validated WUs). Had to fire up an I7 Haswell to compare as well.
7) Message boards : Project Staging Area : Call for wwwwcl beta testers (OpenCL) (Message 53672)
Posted 3433 days ago by Prime Al ScreenProject donor
This Rebirther's 64bit app on 64bit Win7 ATI 5800 series.
C:\Users\Me\Downloads\wwwwcl>wwwwcl.exe -p1334568e11 -P1334569e11 -TWieferich -t 5 -b2000 wwwwcl v2.0 Sieve started: 133456800000000000 <= p < 133456900000000000 p=133456823257959577, 9.814M p/sec, 1.04 CPU cores, 23.3% done. ETA 01 May 21: p=133456846880334179, 9.794M p/sec, 1.04 CPU cores, 46.9% done. ETA 01 May 21: p=133456872227676061, 10.56M p/sec, 1.04 CPU cores, 72.2% done. ETA 01 May 21: p=133456898212588381, 10.78M p/sec, 1.04 CPU cores, 98.2% done. ETA 01 May 21: 03 Sieve complete: 133456800000000001 <= p < 133456900000000000 2535955284 primes tested Elapsed time: 250.35 sec. (3.03 init + 247.23 sieve) at 10129465 p/sec. Processor time: 261.27 sec. (4.43 init + 256.84 sieve). Seconds spent in CPU and GPU: 1006.04 (cpu), 93.97 (gpu) Percent of time spent in CPU vs. GPU: 0.91 (cpu), 0.09 (gpu) CPU/GPU utilization: 0.20 (cores), 0.02 (devices)
8) Message boards : General discussion : Same application different lenght ( 321 LLR) (Message 53524)
Posted 3437 days ago by Prime Al ScreenProject donor
The speed is difference is 3x which is more than hyperthreading even given the old i7 920 cpu. If so I would guess that it is related AVX vs not - that makes [DPS]Pyrys probably correct.
Are you the Anonymous user that may be running AVX?
9) Message boards : Problems and Help : outch! (Message 52961)
Posted 3452 days ago by Prime Al ScreenProject donor
i upgraded one host to ubuntu 12.04 today and now all SGS-LLR tasks are crashing right away:

<core_client_version>7.0.24</core_client_version>
<![CDATA[
<message>
process exited with code 193 (0xc1, -63)
</message>
<stderr_txt>
Stack trace (11 frames):
/usr/bin/boinc(boinc_catch_signal+0x65)[0x48f675]
/lib/x86_64-linux-gnu/libc.so.6(+0x364c0)[0x7f3afa10c4c0]
/lib/x86_64-linux-gnu/libc.so.6(__strcat_chk+0x39)[0x7f3afa1dcdb9]
/usr/bin/boinc[0x412a34]
/usr/bin/boinc[0x412b00]
/usr/bin/boinc[0x43163d]
/usr/bin/boinc[0x431adb]
/usr/bin/boinc[0x41a728]
/usr/bin/boinc[0x4712a4]
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xed)[0x7f3afa0f776d]
/usr/bin/boinc[0x406a65]

</stderr_txt>

any ideas?

This thread suggests a Ubuntu-related client problem
So have you tried to use a boinc 6 series client or a non-Ubuntu provided client?
Before downgrading must sure your cache is empty because, as you are probably aware, boinc client 7 series has a different format than the 6 series!
Or does Ubuntu have updated libC libraries or something (not an Ubuntu person)?

10) Message boards : Number crunching : ATI GPU Failing on LInux 64bit (Message 52925)
Posted 3453 days ago by Prime Al ScreenProject donor

It looks like from your results that there are some library files either missing or not readable. I seem to recall others saying that some 32-bit libraries need to be installed on 64-bit Linux installs for the OpenCL app to work properly.



It is clear from this part of your error messages that you have not installed the Linux ATI Stream SDK as per the instructions (somewhat buried in the project preferences):
error while loading shared libraries: libOpenCL.so: cannot open shared object file: No such file or directory





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