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Message boards : Cullen/Woodall prime search : Woodall - 2 cores vs 4 cores

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Anthony Ayiomamitis
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Joined: 19 Mar 15
Posts: 1652
ID: 386066
Credit: 361,289,555
RAC: 190,797
321 LLR Gold: Earned 500,000 credits (846,980)Cullen LLR Gold: Earned 500,000 credits (998,189)ESP LLR Amethyst: Earned 1,000,000 credits (1,092,316)Generalized Cullen/Woodall LLR Silver: Earned 100,000 credits (105,812)PPS LLR Amethyst: Earned 1,000,000 credits (1,589,174)PSP LLR Amethyst: Earned 1,000,000 credits (1,024,704)SoB LLR Amethyst: Earned 1,000,000 credits (1,011,499)SR5 LLR Amethyst: Earned 1,000,000 credits (1,010,060)SGS LLR Gold: Earned 500,000 credits (521,231)TRP LLR Amethyst: Earned 1,000,000 credits (1,037,468)Woodall LLR Amethyst: Earned 1,000,000 credits (1,040,360)Generalized Cullen/Woodall Sieve Sapphire: Earned 20,000,000 credits (27,778,621)PPS Sieve Double Bronze: Earned 100,000,000 credits (129,614,950)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Jade: Earned 10,000,000 credits (14,516,062)TRP Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,329,228)AP 26/27 Sapphire: Earned 20,000,000 credits (20,275,645)GFN Sapphire: Earned 20,000,000 credits (21,965,558)PSA Double Bronze: Earned 100,000,000 credits (116,531,700)
Message 109562 - Posted: 25 Aug 2017 | 10:00:25 UTC

I have a much better return when running WOO units with "t -2" on my i3 Skylake than with "t -4" on my i7 Skylake. With the latter, I have a gain of about 10% (shorter elapsed time) but with twice the cores being used.

Have others noticed something similar? I am tempted to have two units running on my i7 6700k with the "t -2" parm in lieu of "t -4".

Profile Rafael
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Joined: 22 Oct 14
Posts: 710
ID: 370496
Credit: 155,102,363
RAC: 504,906
321 LLR Ruby: Earned 2,000,000 credits (4,015,911)Cullen LLR Ruby: Earned 2,000,000 credits (2,118,201)ESP LLR Ruby: Earned 2,000,000 credits (2,069,898)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,112,686)PPS LLR Amethyst: Earned 1,000,000 credits (1,485,818)PSP LLR Amethyst: Earned 1,000,000 credits (1,802,854)SoB LLR Ruby: Earned 2,000,000 credits (2,035,645)SR5 LLR Ruby: Earned 2,000,000 credits (2,017,526)SGS LLR Ruby: Earned 2,000,000 credits (2,885,708)TRP LLR Amethyst: Earned 1,000,000 credits (1,718,985)Woodall LLR Amethyst: Earned 1,000,000 credits (1,997,518)Generalized Cullen/Woodall Sieve Ruby: Earned 2,000,000 credits (3,151,890)PPS Sieve Turquoise: Earned 5,000,000 credits (5,201,453)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Ruby: Earned 2,000,000 credits (2,000,053)TRP Sieve (suspended) Ruby: Earned 2,000,000 credits (2,030,160)AP 26/27 Ruby: Earned 2,000,000 credits (2,433,886)GFN Sapphire: Earned 20,000,000 credits (21,207,160)PSA Emerald: Earned 50,000,000 credits (94,818,787)
Message 109564 - Posted: 25 Aug 2017 | 10:12:56 UTC - in response to Message 109562.

I have a much better return when running WOO units with "t -2" on my i3 Skylake than with "t -4" on my i7 Skylake. With the latter, I have a gain of about 10% (shorter elapsed time) but with twice the cores being used.

Have others noticed something similar? I am tempted to have two units running on my i7 6700k with the "t -2" parm in lieu of "t -4".

Using multiple cores per WU will pretty much always be worse than using a core for each WU (when WUs are this big and go over cache regardless) as far as total througput. So yeah, this is expected. Whether it's worth it or not, that's another story.

Personally, I'd take the little bit of performance loss and run T4 in the hopes of having a much better chance of being the prime finder, in case we actually find one.

mackerelProject donor
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Joined: 2 Oct 08
Posts: 1633
ID: 29980
Credit: 184,951,014
RAC: 94,914
321 LLR Ruby: Earned 2,000,000 credits (4,299,457)Cullen LLR Ruby: Earned 2,000,000 credits (4,619,611)ESP LLR Ruby: Earned 2,000,000 credits (3,725,865)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (3,220,326)PPS LLR Sapphire: Earned 20,000,000 credits (24,870,545)PSP LLR Jade: Earned 10,000,000 credits (10,128,604)SoB LLR Ruby: Earned 2,000,000 credits (2,643,659)SR5 LLR Jade: Earned 10,000,000 credits (12,262,110)SGS LLR Turquoise: Earned 5,000,000 credits (6,702,766)TPS LLR (retired) Bronze: Earned 10,000 credits (34,130)TRP LLR Turquoise: Earned 5,000,000 credits (5,143,430)Woodall LLR Ruby: Earned 2,000,000 credits (2,471,793)321 Sieve (suspended) Silver: Earned 100,000 credits (203,937)Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,383,853)Generalized Cullen/Woodall Sieve Sapphire: Earned 20,000,000 credits (20,070,475)PPS Sieve Sapphire: Earned 20,000,000 credits (39,662,287)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Ruby: Earned 2,000,000 credits (2,293,882)TRP Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,012,757)AP 26/27 Jade: Earned 10,000,000 credits (12,231,866)GFN Jade: Earned 10,000,000 credits (17,029,965)PSA Ruby: Earned 2,000,000 credits (2,939,755)
Message 109565 - Posted: 25 Aug 2017 | 11:30:11 UTC
Last modified: 25 Aug 2017 | 11:37:46 UTC

Sounds like a case of ram bandwidth limiting. What is the ram speed and channels on the i3 and i7? i3 are practically not limited even with cheap ram, but when you double the cores without much faster ram, that can be a limit fast. I find dual channel dual rank 3200 ram on my 6700k at 4.0 GHz is close to being unlimited.

By all means try 2x2t but I wouldn't expect it to be much different than 1x4t. For big units like this, I'd not expect much difference in overall throughput between 4x1t and 1x4t, and I'd still prefer 1x4t just to keep unit times down.

Edit:

Here's a post I did on another forum while testing 7800X, but I also have my main system 6700k data in there. Note the 6700k has two flat lines - no significant difference between 1x4t and 4x1t unless you're running smaller FFT where there is some reduction with 4t. I'm not sure I understand the Skylake-X results yet, there is something going on with the new cache structure.

Anthony Ayiomamitis
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Joined: 19 Mar 15
Posts: 1652
ID: 386066
Credit: 361,289,555
RAC: 190,797
321 LLR Gold: Earned 500,000 credits (846,980)Cullen LLR Gold: Earned 500,000 credits (998,189)ESP LLR Amethyst: Earned 1,000,000 credits (1,092,316)Generalized Cullen/Woodall LLR Silver: Earned 100,000 credits (105,812)PPS LLR Amethyst: Earned 1,000,000 credits (1,589,174)PSP LLR Amethyst: Earned 1,000,000 credits (1,024,704)SoB LLR Amethyst: Earned 1,000,000 credits (1,011,499)SR5 LLR Amethyst: Earned 1,000,000 credits (1,010,060)SGS LLR Gold: Earned 500,000 credits (521,231)TRP LLR Amethyst: Earned 1,000,000 credits (1,037,468)Woodall LLR Amethyst: Earned 1,000,000 credits (1,040,360)Generalized Cullen/Woodall Sieve Sapphire: Earned 20,000,000 credits (27,778,621)PPS Sieve Double Bronze: Earned 100,000,000 credits (129,614,950)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Jade: Earned 10,000,000 credits (14,516,062)TRP Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,329,228)AP 26/27 Sapphire: Earned 20,000,000 credits (20,275,645)GFN Sapphire: Earned 20,000,000 credits (21,965,558)PSA Double Bronze: Earned 100,000,000 credits (116,531,700)
Message 109567 - Posted: 25 Aug 2017 | 11:47:06 UTC - in response to Message 109565.

Gents,

Thanks for your input. Here is a very good comparison using actual data (of mine):

i3 6100 - 2 physical cores --> 62,500 sec run time - 123,000 sec CPU time

i7 6700k - 4 physical cores --> 56,750 sec run time - 218,000 sec CPU time

The RAM in both machines is dual channel 2666 MHz but the mobo is limited to 2166 MHz. Since I am processing extra units so as to force the badge flip rather than wait for completed units to verify, there is no great urgency on my part to crunch WOO and, as a result, I will revert back to "t -2" so as to have two work units crunching simultaneously with the expectation that I will emulate my i3's performance.

mackerelProject donor
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Joined: 2 Oct 08
Posts: 1633
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Credit: 184,951,014
RAC: 94,914
321 LLR Ruby: Earned 2,000,000 credits (4,299,457)Cullen LLR Ruby: Earned 2,000,000 credits (4,619,611)ESP LLR Ruby: Earned 2,000,000 credits (3,725,865)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (3,220,326)PPS LLR Sapphire: Earned 20,000,000 credits (24,870,545)PSP LLR Jade: Earned 10,000,000 credits (10,128,604)SoB LLR Ruby: Earned 2,000,000 credits (2,643,659)SR5 LLR Jade: Earned 10,000,000 credits (12,262,110)SGS LLR Turquoise: Earned 5,000,000 credits (6,702,766)TPS LLR (retired) Bronze: Earned 10,000 credits (34,130)TRP LLR Turquoise: Earned 5,000,000 credits (5,143,430)Woodall LLR Ruby: Earned 2,000,000 credits (2,471,793)321 Sieve (suspended) Silver: Earned 100,000 credits (203,937)Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,383,853)Generalized Cullen/Woodall Sieve Sapphire: Earned 20,000,000 credits (20,070,475)PPS Sieve Sapphire: Earned 20,000,000 credits (39,662,287)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Ruby: Earned 2,000,000 credits (2,293,882)TRP Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,012,757)AP 26/27 Jade: Earned 10,000,000 credits (12,231,866)GFN Jade: Earned 10,000,000 credits (17,029,965)PSA Ruby: Earned 2,000,000 credits (2,939,755)
Message 109568 - Posted: 25 Aug 2017 | 11:51:32 UTC - in response to Message 109567.

2133 ram speed is going to choke the 6700k. Do let us know the results for 2x2t but I wouldn't expect i3 speeds out of it.

Profile Rafael
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Joined: 22 Oct 14
Posts: 710
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Credit: 155,102,363
RAC: 504,906
321 LLR Ruby: Earned 2,000,000 credits (4,015,911)Cullen LLR Ruby: Earned 2,000,000 credits (2,118,201)ESP LLR Ruby: Earned 2,000,000 credits (2,069,898)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,112,686)PPS LLR Amethyst: Earned 1,000,000 credits (1,485,818)PSP LLR Amethyst: Earned 1,000,000 credits (1,802,854)SoB LLR Ruby: Earned 2,000,000 credits (2,035,645)SR5 LLR Ruby: Earned 2,000,000 credits (2,017,526)SGS LLR Ruby: Earned 2,000,000 credits (2,885,708)TRP LLR Amethyst: Earned 1,000,000 credits (1,718,985)Woodall LLR Amethyst: Earned 1,000,000 credits (1,997,518)Generalized Cullen/Woodall Sieve Ruby: Earned 2,000,000 credits (3,151,890)PPS Sieve Turquoise: Earned 5,000,000 credits (5,201,453)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Ruby: Earned 2,000,000 credits (2,000,053)TRP Sieve (suspended) Ruby: Earned 2,000,000 credits (2,030,160)AP 26/27 Ruby: Earned 2,000,000 credits (2,433,886)GFN Sapphire: Earned 20,000,000 credits (21,207,160)PSA Emerald: Earned 50,000,000 credits (94,818,787)
Message 109569 - Posted: 25 Aug 2017 | 11:57:13 UTC - in response to Message 109567.

The RAM in both machines is dual channel 2666 MHz but the mobo is limited to 2166 MHz. Since I am processing extra units so as to force the badge flip rather than wait for completed units to verify, there is no great urgency on my part to crunch WOO and, as a result, I will revert back to "t -2" so as to have two work units crunching simultaneously with the expectation that I will emulate my i3's performance.

That's the reason, RAM is slowing the i7 down. This is a "problem" with LLR, it's so efficient that RAM can't keep up with the cores' processing power.

I can only imagine how much worse the 6c Cannon Lake with AVX512 (once implemented) and dual channel will be...

Anthony Ayiomamitis
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Joined: 19 Mar 15
Posts: 1652
ID: 386066
Credit: 361,289,555
RAC: 190,797
321 LLR Gold: Earned 500,000 credits (846,980)Cullen LLR Gold: Earned 500,000 credits (998,189)ESP LLR Amethyst: Earned 1,000,000 credits (1,092,316)Generalized Cullen/Woodall LLR Silver: Earned 100,000 credits (105,812)PPS LLR Amethyst: Earned 1,000,000 credits (1,589,174)PSP LLR Amethyst: Earned 1,000,000 credits (1,024,704)SoB LLR Amethyst: Earned 1,000,000 credits (1,011,499)SR5 LLR Amethyst: Earned 1,000,000 credits (1,010,060)SGS LLR Gold: Earned 500,000 credits (521,231)TRP LLR Amethyst: Earned 1,000,000 credits (1,037,468)Woodall LLR Amethyst: Earned 1,000,000 credits (1,040,360)Generalized Cullen/Woodall Sieve Sapphire: Earned 20,000,000 credits (27,778,621)PPS Sieve Double Bronze: Earned 100,000,000 credits (129,614,950)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Jade: Earned 10,000,000 credits (14,516,062)TRP Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,329,228)AP 26/27 Sapphire: Earned 20,000,000 credits (20,275,645)GFN Sapphire: Earned 20,000,000 credits (21,965,558)PSA Double Bronze: Earned 100,000,000 credits (116,531,700)
Message 109570 - Posted: 25 Aug 2017 | 11:58:24 UTC - in response to Message 109568.

2133 ram speed is going to choke the 6700k. Do let us know the results for 2x2t but I wouldn't expect i3 speeds out of it.

It must be the RAM since the CPU's are not running at full capacity ("-t 4") as reported by HWMonitor and, in fact, the multiplier drops significantly for a second or two before going back to 42x.

By the way, I changed the app_config file to the following, powered down BM and restarted it but the single unit is still running with all 4 CPU's:

<app>
<name>llrWOO</name>
<max_concurrent>1</max_concurrent>
<fraction_done_exact>1</fraction_done_exact>
</app>
<app_version>
<app_name>llrWOO</app_name>
<cmdline>-t 2</cmdline>
<avg_ncpus>4</avg_ncpus>
<max_ncpus>4</max_ncpus>
</app_version>

Have I screwed up somewhere or must the current unit complete before the "-t 2" takes effect?

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321 LLR Ruby: Earned 2,000,000 credits (4,299,457)Cullen LLR Ruby: Earned 2,000,000 credits (4,619,611)ESP LLR Ruby: Earned 2,000,000 credits (3,725,865)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (3,220,326)PPS LLR Sapphire: Earned 20,000,000 credits (24,870,545)PSP LLR Jade: Earned 10,000,000 credits (10,128,604)SoB LLR Ruby: Earned 2,000,000 credits (2,643,659)SR5 LLR Jade: Earned 10,000,000 credits (12,262,110)SGS LLR Turquoise: Earned 5,000,000 credits (6,702,766)TPS LLR (retired) Bronze: Earned 10,000 credits (34,130)TRP LLR Turquoise: Earned 5,000,000 credits (5,143,430)Woodall LLR Ruby: Earned 2,000,000 credits (2,471,793)321 Sieve (suspended) Silver: Earned 100,000 credits (203,937)Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,383,853)Generalized Cullen/Woodall Sieve Sapphire: Earned 20,000,000 credits (20,070,475)PPS Sieve Sapphire: Earned 20,000,000 credits (39,662,287)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Ruby: Earned 2,000,000 credits (2,293,882)TRP Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,012,757)AP 26/27 Jade: Earned 10,000,000 credits (12,231,866)GFN Jade: Earned 10,000,000 credits (17,029,965)PSA Ruby: Earned 2,000,000 credits (2,939,755)
Message 109571 - Posted: 25 Aug 2017 | 12:04:49 UTC - in response to Message 109570.

I'd change the other two 4's to 2's also. Restart should do it, I've done so in past... is it boinc indicating 4 cores in use, or do you actually see 4 in use in task manager? The former would be down to that config, the latter isn't expected. Worst case, do a reboot to ensure things are reset.

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321 LLR Ruby: Earned 2,000,000 credits (4,015,911)Cullen LLR Ruby: Earned 2,000,000 credits (2,118,201)ESP LLR Ruby: Earned 2,000,000 credits (2,069,898)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,112,686)PPS LLR Amethyst: Earned 1,000,000 credits (1,485,818)PSP LLR Amethyst: Earned 1,000,000 credits (1,802,854)SoB LLR Ruby: Earned 2,000,000 credits (2,035,645)SR5 LLR Ruby: Earned 2,000,000 credits (2,017,526)SGS LLR Ruby: Earned 2,000,000 credits (2,885,708)TRP LLR Amethyst: Earned 1,000,000 credits (1,718,985)Woodall LLR Amethyst: Earned 1,000,000 credits (1,997,518)Generalized Cullen/Woodall Sieve Ruby: Earned 2,000,000 credits (3,151,890)PPS Sieve Turquoise: Earned 5,000,000 credits (5,201,453)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Ruby: Earned 2,000,000 credits (2,000,053)TRP Sieve (suspended) Ruby: Earned 2,000,000 credits (2,030,160)AP 26/27 Ruby: Earned 2,000,000 credits (2,433,886)GFN Sapphire: Earned 20,000,000 credits (21,207,160)PSA Emerald: Earned 50,000,000 credits (94,818,787)
Message 109572 - Posted: 25 Aug 2017 | 12:05:30 UTC - in response to Message 109570.

By the way, I changed the app_config file to the following, powered down BM and restarted it but the single unit is still running with all 4 CPU's:

<app>
<name>llrWOO</name>
<max_concurrent>1</max_concurrent>
<fraction_done_exact>1</fraction_done_exact>
</app>
<app_version>
<app_name>llrWOO</app_name>
<cmdline>-t 2</cmdline>
<avg_ncpus>4</avg_ncpus>
<max_ncpus>4</max_ncpus>
</app_version>

Have I screwed up somewhere or must the current unit complete before the "-t 2" takes effect?

If by "still running with all 4 CPUS" you mean "BOINC says it's running on 4", then that's because you've put Avg_CPU = 4. Boinc doesn't actually read usage, it just reports whatever that parameter is.

Anthony Ayiomamitis
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Joined: 19 Mar 15
Posts: 1652
ID: 386066
Credit: 361,289,555
RAC: 190,797
321 LLR Gold: Earned 500,000 credits (846,980)Cullen LLR Gold: Earned 500,000 credits (998,189)ESP LLR Amethyst: Earned 1,000,000 credits (1,092,316)Generalized Cullen/Woodall LLR Silver: Earned 100,000 credits (105,812)PPS LLR Amethyst: Earned 1,000,000 credits (1,589,174)PSP LLR Amethyst: Earned 1,000,000 credits (1,024,704)SoB LLR Amethyst: Earned 1,000,000 credits (1,011,499)SR5 LLR Amethyst: Earned 1,000,000 credits (1,010,060)SGS LLR Gold: Earned 500,000 credits (521,231)TRP LLR Amethyst: Earned 1,000,000 credits (1,037,468)Woodall LLR Amethyst: Earned 1,000,000 credits (1,040,360)Generalized Cullen/Woodall Sieve Sapphire: Earned 20,000,000 credits (27,778,621)PPS Sieve Double Bronze: Earned 100,000,000 credits (129,614,950)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Jade: Earned 10,000,000 credits (14,516,062)TRP Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,329,228)AP 26/27 Sapphire: Earned 20,000,000 credits (20,275,645)GFN Sapphire: Earned 20,000,000 credits (21,965,558)PSA Double Bronze: Earned 100,000,000 credits (116,531,700)
Message 109574 - Posted: 25 Aug 2017 | 12:15:22 UTC - in response to Message 109572.
Last modified: 25 Aug 2017 | 12:26:27 UTC

@Mackeral - I also changed the other two parms to "2" but BM still shows only one work unit running but now with two cores.

@Raphael - I have modified the app_config with "2" in the three critical lines but only one unit now is running with 2 cores showing in the BM as being in use.

Edit: With the "2" specified in all three critical lines in the app_config file, the clocks on the CPU's are now fixed at 3998 MHz (ie no reduction in the multipliers) but the CPU usage is pathetically low (this means I should be able to run my GTX 1080 soon with no impact).

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Joined: 2 Oct 08
Posts: 1633
ID: 29980
Credit: 184,951,014
RAC: 94,914
321 LLR Ruby: Earned 2,000,000 credits (4,299,457)Cullen LLR Ruby: Earned 2,000,000 credits (4,619,611)ESP LLR Ruby: Earned 2,000,000 credits (3,725,865)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (3,220,326)PPS LLR Sapphire: Earned 20,000,000 credits (24,870,545)PSP LLR Jade: Earned 10,000,000 credits (10,128,604)SoB LLR Ruby: Earned 2,000,000 credits (2,643,659)SR5 LLR Jade: Earned 10,000,000 credits (12,262,110)SGS LLR Turquoise: Earned 5,000,000 credits (6,702,766)TPS LLR (retired) Bronze: Earned 10,000 credits (34,130)TRP LLR Turquoise: Earned 5,000,000 credits (5,143,430)Woodall LLR Ruby: Earned 2,000,000 credits (2,471,793)321 Sieve (suspended) Silver: Earned 100,000 credits (203,937)Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,383,853)Generalized Cullen/Woodall Sieve Sapphire: Earned 20,000,000 credits (20,070,475)PPS Sieve Sapphire: Earned 20,000,000 credits (39,662,287)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Ruby: Earned 2,000,000 credits (2,293,882)TRP Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,012,757)AP 26/27 Jade: Earned 10,000,000 credits (12,231,866)GFN Jade: Earned 10,000,000 credits (17,029,965)PSA Ruby: Earned 2,000,000 credits (2,939,755)
Message 109577 - Posted: 25 Aug 2017 | 12:47:20 UTC - in response to Message 109574.

You might have to play with the CPU usage in boinc settings to get it to run the desired number of simultaneous units. This isn't great...

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Credit: 361,289,555
RAC: 190,797
321 LLR Gold: Earned 500,000 credits (846,980)Cullen LLR Gold: Earned 500,000 credits (998,189)ESP LLR Amethyst: Earned 1,000,000 credits (1,092,316)Generalized Cullen/Woodall LLR Silver: Earned 100,000 credits (105,812)PPS LLR Amethyst: Earned 1,000,000 credits (1,589,174)PSP LLR Amethyst: Earned 1,000,000 credits (1,024,704)SoB LLR Amethyst: Earned 1,000,000 credits (1,011,499)SR5 LLR Amethyst: Earned 1,000,000 credits (1,010,060)SGS LLR Gold: Earned 500,000 credits (521,231)TRP LLR Amethyst: Earned 1,000,000 credits (1,037,468)Woodall LLR Amethyst: Earned 1,000,000 credits (1,040,360)Generalized Cullen/Woodall Sieve Sapphire: Earned 20,000,000 credits (27,778,621)PPS Sieve Double Bronze: Earned 100,000,000 credits (129,614,950)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Jade: Earned 10,000,000 credits (14,516,062)TRP Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,329,228)AP 26/27 Sapphire: Earned 20,000,000 credits (20,275,645)GFN Sapphire: Earned 20,000,000 credits (21,965,558)PSA Double Bronze: Earned 100,000,000 credits (116,531,700)
Message 109578 - Posted: 25 Aug 2017 | 13:10:27 UTC - in response to Message 109577.

You might have to play with the CPU usage in boinc settings to get it to run the desired number of simultaneous units. This isn't great...

As with all LLR's, I have it at 50% ... I aborted the extra WOO work units and it did redownload now CUL (my next target project) with a second unit now kicked in and processing.

Life is now back to normal.

NeoMetal*
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Joined: 25 Mar 11
Posts: 397
ID: 92179
Credit: 1,616,877,921
RAC: 1,135,504
321 LLR Turquoise: Earned 5,000,000 credits (7,382,485)Cullen LLR Turquoise: Earned 5,000,000 credits (6,655,866)ESP LLR Turquoise: Earned 5,000,000 credits (7,642,501)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,027,824)PPS LLR Turquoise: Earned 5,000,000 credits (8,257,524)PSP LLR Jade: Earned 10,000,000 credits (10,891,779)SoB LLR Jade: Earned 10,000,000 credits (10,261,655)SR5 LLR Turquoise: Earned 5,000,000 credits (7,096,480)SGS LLR Turquoise: Earned 5,000,000 credits (7,403,813)TRP LLR Turquoise: Earned 5,000,000 credits (5,760,330)Woodall LLR Turquoise: Earned 5,000,000 credits (5,726,778)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,094,130)Generalized Cullen/Woodall Sieve Jade: Earned 10,000,000 credits (10,139,500)PPS Sieve Double Gold: Earned 500,000,000 credits (980,538,029)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,235,150)TRP Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,376,844)AP 26/27 Jade: Earned 10,000,000 credits (10,467,327)GFN Double Silver: Earned 200,000,000 credits (388,732,768)PSA Double Bronze: Earned 100,000,000 credits (103,206,213)
Message 109590 - Posted: 25 Aug 2017 | 16:18:38 UTC
Last modified: 25 Aug 2017 | 16:34:40 UTC

Change <max_ncpus>4</max_ncpus> back to 4 and it should run 2 Woodall WUs (or any other sub project) on 2 threads each. That sets the max number of TOTAL cores to use. So 2WUs with 2t each = 4 cores needed to run the same sub project simultaneously.
When you got the Cullen WU it has it's own settings (if Woodal and Cullen both have <max_ncpus>2</max_ncpus> set to 2 than that's a TOTAL of 4) and is probably why it's working now (running 2 WUs at 2t each), but to run 2 of the same sub project you need to do the above.
____________
"Those who would give up Essential Liberty to purchase a little Temporary Safety, deserve neither Liberty nor Safety."

-Benjamin Franklin

Anthony Ayiomamitis
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Joined: 19 Mar 15
Posts: 1652
ID: 386066
Credit: 361,289,555
RAC: 190,797
321 LLR Gold: Earned 500,000 credits (846,980)Cullen LLR Gold: Earned 500,000 credits (998,189)ESP LLR Amethyst: Earned 1,000,000 credits (1,092,316)Generalized Cullen/Woodall LLR Silver: Earned 100,000 credits (105,812)PPS LLR Amethyst: Earned 1,000,000 credits (1,589,174)PSP LLR Amethyst: Earned 1,000,000 credits (1,024,704)SoB LLR Amethyst: Earned 1,000,000 credits (1,011,499)SR5 LLR Amethyst: Earned 1,000,000 credits (1,010,060)SGS LLR Gold: Earned 500,000 credits (521,231)TRP LLR Amethyst: Earned 1,000,000 credits (1,037,468)Woodall LLR Amethyst: Earned 1,000,000 credits (1,040,360)Generalized Cullen/Woodall Sieve Sapphire: Earned 20,000,000 credits (27,778,621)PPS Sieve Double Bronze: Earned 100,000,000 credits (129,614,950)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Jade: Earned 10,000,000 credits (14,516,062)TRP Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,329,228)AP 26/27 Sapphire: Earned 20,000,000 credits (20,275,645)GFN Sapphire: Earned 20,000,000 credits (21,965,558)PSA Double Bronze: Earned 100,000,000 credits (116,531,700)
Message 109595 - Posted: 25 Aug 2017 | 18:25:15 UTC - in response to Message 109590.

Thanks, Neo.

recoil44
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Joined: 20 Dec 15
Posts: 29
ID: 433037
Credit: 164,385,634
RAC: 679,864
321 LLR Ruby: Earned 2,000,000 credits (2,079,600)Cullen LLR Amethyst: Earned 1,000,000 credits (1,857,648)ESP LLR Ruby: Earned 2,000,000 credits (2,014,603)Generalized Cullen/Woodall LLR Amethyst: Earned 1,000,000 credits (1,409,206)PPS LLR Ruby: Earned 2,000,000 credits (2,003,268)PSP LLR Ruby: Earned 2,000,000 credits (2,129,821)SoB LLR Ruby: Earned 2,000,000 credits (2,033,066)SR5 LLR Ruby: Earned 2,000,000 credits (2,005,647)SGS LLR Ruby: Earned 2,000,000 credits (2,003,579)TRP LLR Ruby: Earned 2,000,000 credits (2,014,583)Woodall LLR Amethyst: Earned 1,000,000 credits (1,382,028)Generalized Cullen/Woodall Sieve Ruby: Earned 2,000,000 credits (2,473,441)PPS Sieve Emerald: Earned 50,000,000 credits (73,474,316)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Ruby: Earned 2,000,000 credits (2,089,865)TRP Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,297,782)AP 26/27 Turquoise: Earned 5,000,000 credits (9,889,178)GFN Emerald: Earned 50,000,000 credits (50,228,003)
Message 109598 - Posted: 25 Aug 2017 | 20:06:32 UTC

<max_concurrent>1</max_concurrent>


This is why WOO is only running 1 at a time.

NeoMetal*
Volunteer tester
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Joined: 25 Mar 11
Posts: 397
ID: 92179
Credit: 1,616,877,921
RAC: 1,135,504
321 LLR Turquoise: Earned 5,000,000 credits (7,382,485)Cullen LLR Turquoise: Earned 5,000,000 credits (6,655,866)ESP LLR Turquoise: Earned 5,000,000 credits (7,642,501)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,027,824)PPS LLR Turquoise: Earned 5,000,000 credits (8,257,524)PSP LLR Jade: Earned 10,000,000 credits (10,891,779)SoB LLR Jade: Earned 10,000,000 credits (10,261,655)SR5 LLR Turquoise: Earned 5,000,000 credits (7,096,480)SGS LLR Turquoise: Earned 5,000,000 credits (7,403,813)TRP LLR Turquoise: Earned 5,000,000 credits (5,760,330)Woodall LLR Turquoise: Earned 5,000,000 credits (5,726,778)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,094,130)Generalized Cullen/Woodall Sieve Jade: Earned 10,000,000 credits (10,139,500)PPS Sieve Double Gold: Earned 500,000,000 credits (980,538,029)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,235,150)TRP Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,376,844)AP 26/27 Jade: Earned 10,000,000 credits (10,467,327)GFN Double Silver: Earned 200,000,000 credits (388,732,768)PSA Double Bronze: Earned 100,000,000 credits (103,206,213)
Message 109602 - Posted: 25 Aug 2017 | 22:02:38 UTC - in response to Message 109598.

<max_concurrent>1</max_concurrent>


This is why WOO is only running 1 at a time.


You don't even need this as my cc_config is:

<app>
<name>llrWOO</name>
<fraction_done_exact/>
</app>
<app_version>
<app_name>llrWOO</app_name>
<cmdline>-t 2</cmdline>
<avg_ncpus>2</avg_ncpus>
<max_ncpus>4</max_ncpus>
</app_version>

The <max_concurrent>1</max_concurrent> could also limit the number of each sub project WUs you can run simultaneously.


____________
"Those who would give up Essential Liberty to purchase a little Temporary Safety, deserve neither Liberty nor Safety."

-Benjamin Franklin

recoil44
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Joined: 20 Dec 15
Posts: 29
ID: 433037
Credit: 164,385,634
RAC: 679,864
321 LLR Ruby: Earned 2,000,000 credits (2,079,600)Cullen LLR Amethyst: Earned 1,000,000 credits (1,857,648)ESP LLR Ruby: Earned 2,000,000 credits (2,014,603)Generalized Cullen/Woodall LLR Amethyst: Earned 1,000,000 credits (1,409,206)PPS LLR Ruby: Earned 2,000,000 credits (2,003,268)PSP LLR Ruby: Earned 2,000,000 credits (2,129,821)SoB LLR Ruby: Earned 2,000,000 credits (2,033,066)SR5 LLR Ruby: Earned 2,000,000 credits (2,005,647)SGS LLR Ruby: Earned 2,000,000 credits (2,003,579)TRP LLR Ruby: Earned 2,000,000 credits (2,014,583)Woodall LLR Amethyst: Earned 1,000,000 credits (1,382,028)Generalized Cullen/Woodall Sieve Ruby: Earned 2,000,000 credits (2,473,441)PPS Sieve Emerald: Earned 50,000,000 credits (73,474,316)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Ruby: Earned 2,000,000 credits (2,089,865)TRP Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,297,782)AP 26/27 Turquoise: Earned 5,000,000 credits (9,889,178)GFN Emerald: Earned 50,000,000 credits (50,228,003)
Message 109604 - Posted: 26 Aug 2017 | 0:46:35 UTC - in response to Message 109602.

The <max_concurrent>1</max_concurrent> could also limit the number of each sub project WUs you can run simultaneously.


Exactly my point.

in Message 109570 (7th post in this thread) Anthony posted his app_config for WOO and said it was only running one unit. The rest of the thread was trying to fix that, ending with him switching to CUL and thinking everything was ok. However, next time he runs WOO it's still only going to run one unit at a time.

He needs to change WOO's max_concurrent value to 2 in his app_config.

NeoMetal*
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Joined: 25 Mar 11
Posts: 397
ID: 92179
Credit: 1,616,877,921
RAC: 1,135,504
321 LLR Turquoise: Earned 5,000,000 credits (7,382,485)Cullen LLR Turquoise: Earned 5,000,000 credits (6,655,866)ESP LLR Turquoise: Earned 5,000,000 credits (7,642,501)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,027,824)PPS LLR Turquoise: Earned 5,000,000 credits (8,257,524)PSP LLR Jade: Earned 10,000,000 credits (10,891,779)SoB LLR Jade: Earned 10,000,000 credits (10,261,655)SR5 LLR Turquoise: Earned 5,000,000 credits (7,096,480)SGS LLR Turquoise: Earned 5,000,000 credits (7,403,813)TRP LLR Turquoise: Earned 5,000,000 credits (5,760,330)Woodall LLR Turquoise: Earned 5,000,000 credits (5,726,778)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,094,130)Generalized Cullen/Woodall Sieve Jade: Earned 10,000,000 credits (10,139,500)PPS Sieve Double Gold: Earned 500,000,000 credits (980,538,029)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,235,150)TRP Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,376,844)AP 26/27 Jade: Earned 10,000,000 credits (10,467,327)GFN Double Silver: Earned 200,000,000 credits (388,732,768)PSA Double Bronze: Earned 100,000,000 credits (103,206,213)
Message 109606 - Posted: 26 Aug 2017 | 5:38:49 UTC - in response to Message 109604.
Last modified: 26 Aug 2017 | 5:39:55 UTC

The <max_concurrent>1</max_concurrent> could also limit the number of each sub project WUs you can run simultaneously.


Exactly my point.

in Message 109570 (7th post in this thread) Anthony posted his app_config for WOO and said it was only running one unit. The rest of the thread was trying to fix that, ending with him switching to CUL and thinking everything was ok. However, next time he runs WOO it's still only going to run one unit at a time.

He needs to change WOO's max_concurrent value to 2 in his app_config.

Or set it to 4 if he wants to run 4 single threaded WUs. Or better yet, just remove <max_concurrent>1</max_concurrent> line entirely on all CPU sub projects in app_config.
____________
"Those who would give up Essential Liberty to purchase a little Temporary Safety, deserve neither Liberty nor Safety."

-Benjamin Franklin

Profile composite
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Joined: 16 Feb 10
Posts: 312
ID: 55391
Credit: 337,118,215
RAC: 195,836
321 LLR Ruby: Earned 2,000,000 credits (3,450,221)Cullen LLR Gold: Earned 500,000 credits (676,922)ESP LLR Amethyst: Earned 1,000,000 credits (1,021,827)Generalized Cullen/Woodall LLR Amethyst: Earned 1,000,000 credits (1,715,268)PPS LLR Ruby: Earned 2,000,000 credits (3,264,119)PSP LLR Ruby: Earned 2,000,000 credits (3,138,070)SoB LLR Ruby: Earned 2,000,000 credits (3,016,075)SR5 LLR Turquoise: Earned 5,000,000 credits (5,071,131)SGS LLR Ruby: Earned 2,000,000 credits (2,860,720)TRP LLR Amethyst: Earned 1,000,000 credits (1,006,014)Woodall LLR Amethyst: Earned 1,000,000 credits (1,291,833)321 Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,228,005)Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,571,178)Generalized Cullen/Woodall Sieve Ruby: Earned 2,000,000 credits (2,206,963)PPS Sieve Double Bronze: Earned 100,000,000 credits (140,018,477)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Jade: Earned 10,000,000 credits (10,165,888)TRP Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,071,454)AP 26/27 Ruby: Earned 2,000,000 credits (2,439,709)GFN Sapphire: Earned 20,000,000 credits (26,149,758)PSA Double Bronze: Earned 100,000,000 credits (102,758,261)
Message 110033 - Posted: 7 Sep 2017 | 9:20:56 UTC - in response to Message 109571.

I'd change the other two 4's to 2's also. Restart should do it, I've done so in past... is it boinc indicating 4 cores in use, or do you actually see 4 in use in task manager? The former would be down to that config, the latter isn't expected. Worst case, do a reboot to ensure things are reset.

On Linux you can restart the BOINC client instead.
sudo service boinc-client restart
causes work units in progress to start using the project's new app_config.xml settings. That's if your filesystem contains the file /etc/init.d/boinc-client
You can even have the BOINC Manager open while you restart the service, and if you do, you'll see the work units in progress change to using the new number of CPUs.

Anthony Ayiomamitis
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Joined: 19 Mar 15
Posts: 1652
ID: 386066
Credit: 361,289,555
RAC: 190,797
321 LLR Gold: Earned 500,000 credits (846,980)Cullen LLR Gold: Earned 500,000 credits (998,189)ESP LLR Amethyst: Earned 1,000,000 credits (1,092,316)Generalized Cullen/Woodall LLR Silver: Earned 100,000 credits (105,812)PPS LLR Amethyst: Earned 1,000,000 credits (1,589,174)PSP LLR Amethyst: Earned 1,000,000 credits (1,024,704)SoB LLR Amethyst: Earned 1,000,000 credits (1,011,499)SR5 LLR Amethyst: Earned 1,000,000 credits (1,010,060)SGS LLR Gold: Earned 500,000 credits (521,231)TRP LLR Amethyst: Earned 1,000,000 credits (1,037,468)Woodall LLR Amethyst: Earned 1,000,000 credits (1,040,360)Generalized Cullen/Woodall Sieve Sapphire: Earned 20,000,000 credits (27,778,621)PPS Sieve Double Bronze: Earned 100,000,000 credits (129,614,950)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Jade: Earned 10,000,000 credits (14,516,062)TRP Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,329,228)AP 26/27 Sapphire: Earned 20,000,000 credits (20,275,645)GFN Sapphire: Earned 20,000,000 credits (21,965,558)PSA Double Bronze: Earned 100,000,000 credits (116,531,700)
Message 110047 - Posted: 7 Sep 2017 | 16:04:56 UTC - in response to Message 110033.

Gents,

MANY thanks for your feedback. I have removed all references to <max_concurrent>1</max_concurrent> while at the same time changing the parms so as to use two CPU's per work unit. The new config file was reread within BM and it is now working like a charm!

Since I get the same behaviour whether I am running "-t 2" on my i3 Skylake or "-t 4" on my i7 Skylake, I purposely switched to now having two units running simultaneously with two cores per unit, thus replicating the scenario with the i3 Skylake. Since 321 runs fairly fast, it will be interesting to see how things pan out when things complete.

I will post back to the group when results become available since this is something that may (should) further optimize performance.

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