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drummers-lowrise
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1)
Message boards :
Number crunching :
LLR2 installed on all big LLR projects
(Message 147079)
Posted 884 days ago by reiner
Thank you for the answer.
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2)
Message boards :
Number crunching :
LLR2 installed on all big LLR projects
(Message 147068)
Posted 884 days ago by reiner
An interesting example: Mega Prime found by broken host.
http://www.primegrid.com/workunit.php?wuid=688110788
(Click on task number to view output).
As you can see, there is a message "Gerbicz check failed" in task output, along with some ROUND OFF (0.5) errors. The host is bad and unstable (overclocking, overheating).
"Gerbicz check failed" message is most dangerous here - it mean that error slip unnoticed through GWNUM. Without Gerbicz, incorrect intermediate result will be used in following stages of computation, generating wrong final result. Only LLR2 was able to detect error, recover, and give credit for this discovery to the original person.
In classic PrimeGrid DC scheme, this result will be inconclusive, and prime will be found by somebody else.
In projects without double-checking, like PrpNet or some other Boinc LLR projects, this prime will be missed forever.
Hi, i have a question. I have an ROUND OFF error with one SoB-Task running on CloudServer. Shoud i be worried? Why is LL2 switching to an bigger FFT Size after to many errors? Are to small FFT-Size cause errors?
<core_client_version>7.14.2</core_client_version>
<![CDATA[
<stderr_txt>
BOINC PrimeGrid wrapper 2.01 (Aug 11 2020 20:39:32)
running ../../projects/www.primegrid.com/sllr2_1.0.0_linux64_200814 -v
LLR2 Program - Version 1.0.0, using Gwnum Library Version 29.8
running ../../projects/www.primegrid.com/sllr2_1.0.0_linux64_200814 -oGerbicz=1 -oProofName=proof -oProofCount=128 -oProductName=prod -oPietrzak=1 -oCachePoints=0 -pSavePoints -q21181*2^33846068+1 -d -t2 -oDiskWriteTime=10
Starting Proth prime test of 21181*2^33846068+1
Using all-complex FMA3 FFT length 2880K, Pass1=768, Pass2=3840, clm=1, 2 threads, a = 3, L2 = 565*468, M = 264420
Iter: 2958357/33846068, ERROR: ROUND OFF (0.4090619391) > 0.4
Continuing from last save file.
Resuming Proth prime test of 21181*2^33846068+1 at bit 2908621 [8.59%]
Using all-complex FMA3 FFT length 2880K, Pass1=768, Pass2=3840, clm=1, 2 threads, a = 3, L2 = 565*468, M = 264420
Compressed 128 points to 7 products. Time : 762.772 sec.
Testing complete.
15:42:10 (25804): called boinc_finish(0)
Thanks.
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3)
Message boards :
Number crunching :
LLR2 installed on all big LLR projects
(Message 143213)
Posted 989 days ago by reiner
Ok, thanks.
After validation it is 51 or so.
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4)
Message boards :
Number crunching :
LLR2 installed on all big LLR projects
(Message 143210)
Posted 989 days ago by reiner
Hi, i run 12 321 small Tasks and got full pending credit(6500+Credit).
Is this temporary, or a bug?
https://www.primegrid.com/workunit.php?wuid=674629315
https://www.primegrid.com/workunit.php?wuid=674629313
Thanks.
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5)
Message boards :
The Riesel Problem :
LLR TRP app Updated?
(Message 142561)
Posted 1014 days ago by reiner
Hi,
i got two double check tasks today:-).
https://www.primegrid.com/workunit.php?wuid=670048130
Stderr output
<core_client_version>7.16.6</core_client_version>
<![CDATA[
<stderr_txt>
BOINC PrimeGrid wrapper 2.01 (Aug 11 2020 20:39:32)
running ../../projects/www.primegrid.com/sllr2_1.0.0_linux64_200814 -v
LLR2 Program - Version 1.0.0, using Gwnum Library Version 29.8
running ../../projects/www.primegrid.com/sllr2_1.0.0_linux64_200814 -oGerbicz=1 -oProofName=proofc -pVerifyCert -q215443*2^10810515-1 -d -t1 -oDiskWriteTime=10
Gerbicz check is requested, switching to PRP.
Starting probable prime test of 215443*2^10810515-1
Using FMA3 FFT length 1M, Pass1=1K, Pass2=1K, clm=1, a = 3, L2 = 207*207
Testing complete.
22:15:19 (1439): called boinc_finish(0)
</stderr_txt>
]]>
https://www.primegrid.com/workunit.php?wuid=670048134
Stderr output
<core_client_version>7.16.6</core_client_version>
<![CDATA[
<stderr_txt>
BOINC PrimeGrid wrapper 2.01 (Aug 11 2020 20:39:32)
running ../../projects/www.primegrid.com/sllr2_1.0.0_linux64_200814 -v
LLR2 Program - Version 1.0.0, using Gwnum Library Version 29.8
running ../../projects/www.primegrid.com/sllr2_1.0.0_linux64_200814 -oGerbicz=1 -oProofName=proofc -pVerifyCert -q9221*2^10810626-1 -d -t1 -oDiskWriteTime=10
Gerbicz check is requested, switching to PRP.
Starting probable prime test of 9221*2^10810626-1
Using FMA3 FFT length 896K, Pass1=896, Pass2=1K, clm=1, a = 3, L2 = 242*242
Testing complete.
22:12:29 (36284): called boinc_finish(0)
</stderr_txt>
]]>
Are they running longer, if the Number is prime, or are they always short?
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6)
Message boards :
Number crunching :
LLR 3.8.20 Going Live!
(Message 106135)
Posted 2264 days ago by reiner
I get it run. Thanks.
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7)
Message boards :
Number crunching :
LLR 3.8.20 Going Live!
(Message 106129)
Posted 2264 days ago by reiner
Hello,
i have a question:
I get LLR 3.8.20 to work under Ubuntu 17.04, but it seems i make something wrong.
http://www.primegrid.com/show_host_detail.php?hostid=537602
I get this Error-message from the "BOINC-Event-Log" but the Multithreading works fine.
Fri 17 Mar 2017 01:59:03 PM CET | PrimeGrid | Scheduler request completed: got 1 new tasks
Fri 17 Mar 2017 01:59:03 PM CET | PrimeGrid | [error] Can't create link file projects/www.primegrid.com/stat_icon
Fri 17 Mar 2017 01:59:04 PM CET | PrimeGrid | [error] Can't create link file projects/www.primegrid.com/slideshow_gcwsieve_00
Fri 17 Mar 2017 01:59:04 PM CET | PrimeGrid | [error] Can't create link file projects/www.primegrid.com/slideshow_psp_sr2sieve_00
Fri 17 Mar 2017 01:59:05 PM CET | PrimeGrid | [error] Can't create link file projects/www.primegrid.com/slideshow_primegen_00
Fri 17 Mar 2017 01:59:05 PM CET | PrimeGrid | [error] Can't create link file projects/www.primegrid.com/slideshow_llrTPS_00
Fri 17 Mar 2017 01:59:05 PM CET | PrimeGrid | [error] Can't create link file projects/www.primegrid.com/slideshow_llrWOO_00
Fri 17 Mar 2017 01:59:06 PM CET | PrimeGrid | [error] Can't create link file projects/www.primegrid.com/slideshow_llrCUL_00.
And also all Workunits reports as "Anonymous plattform(CPU)".
Here is my llr.ini.6.07:
Work=0
PgenOutputFile=llrout.txt
PgenLine=0
Expr=Not yet implemented
ExprFile=Not yet implemented
ExprFileLine=1
WorkDone=0
OutputIterations=7000
ResultsFileIterations=99999999
DiskWriteTime=10
TwoBackupFiles=1
CumulativeTiming=0
RunOnBattery=1
HideIcon=1
TrayIcon=0
Left=36
Top=23
Right=804
Bottom=535
And my app_info.xml:
<app_info>
<app>
<name>llrTPS</name>
<user_friendly_name>SGS (LLR)</user_friendly_name>
<fraction_done_exact>1</fraction_done_exact>
</app>
<app>
<name>llrSR5</name>
<user_friendly_name>SR5 (LLR)</user_friendly_name>
<fraction_done_exact>1</fraction_done_exact>
</app>
<app>
<name>llrWOO</name>
<user_friendly_name>Woodall (LLR)</user_friendly_name>
<fraction_done_exact>1</fraction_done_exact>
</app>
<app>
<name>llrMEGA</name>
<user_friendly_name>PPS-MEGA (LLR)</user_friendly_name>
<fraction_done_exact>1</fraction_done_exact>
</app>
<file_info>
<name>primegrid_llr_wrapper_8.00_x86_64-pc-linux-gnu</name>
<executable/>
</file_info>
<file_info>
<name>llr64.3.8.20</name>
<executable/>
</file_info>
<file_info>
<name>llr.ini.6.07</name>
</file_info>
<app_version>
<app_name>llrTPS</app_name>
<version_num>800</version_num>
<api_version>6.10.6</api_version>
<cmdline>-t 16</cmdline>
<file_ref>
<file_name>primegrid_llr_wrapper_8.00_x86_64-pc-linux-gnu</file_name>
<main_program/>
</file_ref>
<file_ref>
<file_name>llr64.3.8.20</file_name>
<open_name>primegrid_llr</open_name>
<copy_file/>
</file_ref>
<file_ref>
<file_name>llr.ini.6.07</file_name>
<open_name>llr.ini</open_name>
<copy_file/>
</file_ref>
</app_version>
<app_version>
<app_name>llrSR5</app_name>
<version_num>800</version_num>
<api_version>6.10.6</api_version>
<cmdline>-t 16</cmdline>
<file_ref>
<file_name>primegrid_llr_wrapper_8.00_x86_64-pc-linux-gnu</file_name>
<main_program/>
</file_ref>
<file_ref>
<file_name>llr64.3.8.20</file_name>
<open_name>primegrid_llr</open_name>
<copy_file/>
</file_ref>
<file_ref>
<file_name>llr.ini.6.07</file_name>
<open_name>llr.ini</open_name>
<copy_file/>
</file_ref>
</app_version>
<app_version>
<app_name>llrWOO</app_name>
<version_num>800</version_num>
<api_version>6.10.6</api_version>
<cmdline>-t 16</cmdline>
<file_ref>
<file_name>primegrid_llr_wrapper_8.00_x86_64-pc-linux-gnu</file_name>
<main_program/>
</file_ref>
<file_ref>
<file_name>llr64.3.8.20</file_name>
<open_name>primegrid_llr</open_name>
<copy_file/>
</file_ref>
<file_ref>
<file_name>llr.ini.6.07</file_name>
<open_name>llr.ini</open_name>
<copy_file/>
</file_ref>
</app_version>
<app_version>
<app_name>llrMEGA</app_name>
<version_num>800</version_num>
<api_version>6.10.6</api_version>
<cmdline>-t 16</cmdline>
<file_ref>
<file_name>primegrid_llr_wrapper_8.00_x86_64-pc-linux-gnu</file_name>
<main_program/>
</file_ref>
<file_ref>
<file_name>llr64.3.8.20</file_name>
<open_name>primegrid_llr</open_name>
<copy_file/>
</file_ref>
<file_ref>
<file_name>llr.ini.6.07</file_name>
<open_name>llr.ini</open_name>
<copy_file/>
</file_ref>
</app_version>
</app_info>.
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8)
Message boards :
Prime Sierpinski Problem :
PSP Double Check is Complete!
(Message 100651)
Posted 2394 days ago by reiner
Hello,
someone (I think its not Primegrid, because the prime is not on the homepage and no news until now) found an SoB Prime, 9.38M Digits, Rank 7.
http://primes.utm.edu/top20/page.php?id=3
http://primes.utm.edu/primes/page.php?id=122473
Has this find affect of our DoubleCheck?
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9)
Message boards :
AP26 - AP27 Search :
App testing
(Message 96835)
Posted 2510 days ago by reiner
Thanks for the Upgrade :-),
I can now run all GPU-Tasks.
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10)
Message boards :
AP26 - AP27 Search :
App testing
(Message 96831)
Posted 2510 days ago by reiner
I tested the App on Ubuntu 16.04 LTS (kernel 4.4.0-28.47-generic4.4.13),
amdgpu-pro 16.30.3-306809(beta) Driver, AMD A10-7850K, 2GB VRAM.
CPU runs great:
Solution: 25 366384 6171054912832631
Computation of K: 366384 SHIFT: 0 complete in 155 seconds
Computation of K: 366384 SHIFT: 64 complete in 154 seconds
Checkpoint: KMIN:366384 KMAX:366384 SHIFT:0 K:366384 ITER:2 (20.00%)
Computation of K: 366384 SHIFT: 128 complete in 157 seconds
Computation of K: 366384 SHIFT: 192 complete in 162 seconds
Checkpoint: KMIN:366384 KMAX:366384 SHIFT:0 K:366384 ITER:4 (40.00%)
Computation of K: 366384 SHIFT: 256 complete in 153 seconds
Computation of K: 366384 SHIFT: 320 complete in 155 seconds
Checkpoint: KMIN:366384 KMAX:366384 SHIFT:0 K:366384 ITER:6 (60.00%)
Computation of K: 366384 SHIFT: 384 complete in 154 seconds
Computation of K: 366384 SHIFT: 448 complete in 155 seconds
Checkpoint: KMIN:366384 KMAX:366384 SHIFT:0 K:366384 ITER:8 (80.00%)
Computation of K: 366384 SHIFT: 512 complete in 157 seconds
Computation of K: 366384 SHIFT: 576 complete in 156 seconds
Checkpoint: KMIN:366384 KMAX:366384 SHIFT:0 K:366384 ITER:10 (100.00%)
Checkpoint: KMIN:366384 KMAX:366384 SHIFT:0 K:366385 ITER:0 (100.00%)
But the GPU runs only with the older App-Version.
./ap26_opencl_linux64 366384 366384 0 -- 0
Command line: ./ap26_opencl_linux64 366384 366384 0 -- 0
AP26 OpenCL 10-shift search version 1.1-dev by Bryan Little and Iain Bethune
Compiled Jul 5 2016 with GCC 4.6.4
Search parameters are KMIN: 366384 KMAX: 366384 SHIFT: 0
Beginning a new search with parameters from the command line
Group 1 with 1 devices
Device 0
Platform name: AMD Accelerated Parallel Processing
Vendor: Advanced Micro Devices, Inc.
Device name: Spectre
using device 0
compiling clearok
building with optimizations
compiling clearsol
building with optimizations
compiling offset
building with optimizations
compiling setok
building with optimizations
compiling sieve
building with optimizations
compiling setupokok
building withOUT optimizations
compiling checkn
building withOUT optimizations
compiling done
local workgroup size for sieve kernel is 64 threads
1 K in this range remaining to be searched (0 skipped, 0 done).
Starting search... reporting APs of size 20 and larger
Solution: 25 366384 6171054912832631
Computation for K: 366384 SHIFT: 0 complete.
GPU time was 45 seconds
Computation for K: 366384 SHIFT: 64 complete.
GPU time was 44 seconds
Computation for K: 366384 SHIFT: 128 complete.
GPU time was 45 seconds
Computation for K: 366384 SHIFT: 192 complete.
GPU time was 45 seconds
Computation for K: 366384 SHIFT: 256 complete.
GPU time was 45 seconds
Computation for K: 366384 SHIFT: 320 complete.
GPU time was 45 seconds
Computation for K: 366384 SHIFT: 384 complete.
GPU time was 46 seconds
Computation for K: 366384 SHIFT: 448 complete.
GPU time was 45 seconds
Computation for K: 366384 SHIFT: 512 complete.
GPU time was 44 seconds
Computation for K: 366384 SHIFT: 576 complete.
GPU time was 45 seconds
total GPU time for K was 450 seconds
Checkpoint: KMIN=366384 KMAX=366384 SHIFT=0 K=366385 (100.00%)
But with the new App I get an Error. stderr.txt:
16:38:36 (4135): Can't open init data file - running in standalone mode
AP26 OpenCL 10-shift search version 1.1-dev by Bryan Little and Iain Bethune
Compiled Jul 13 2016 with GCC 4.4.7 20120313 (Red Hat 4.4.7-17)
Command line: ./ap26_opencl_linux64 366384 366384 0 -- 0
16:38:36 (4135): Can't open init data file - running in standalone mode
Error: boinc_get_opencl_ids() failed with error -108
It would be nice if the AP27-Search-App running on ALL AMD OpenCL-Devices and not like the current genefer/pps-sieve Apps,
who needs the "AMD-CAL" Driver who is really hard to get it work(i have give up with this).
The AMDGPU PRO Linux Driver runs very well and it support OpenCL1.2 out of the box.
[/b]
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