FAQ - pls read first

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rebirther Volunteer moderator Project administrator Project developer Project tester Project scientist Send message Joined: 2 Jan 13 Posts: 8477 Credit: 178,780,813 RAC: 110	Message 14 - Posted: 27 Nov 2014, 21:50:51 UTC Last modified: 9 May 2026, 11:08:49 UTC
General infos - checkpoints every 1min - fixed credits - max WUs in progress = 80 per core - max GPU WUs in progress = 50 per GPU - anonymous platforms are not allowed - deadline = different CPU cache usage FFT length * cpu cores or -tx = max CPU cache. (x for the amount of cores) AVAST issues There seems to be a problem with the Avast software. Configure Avast exceptions Also happened by getting: transient upload error Current issues / solutions invalid WUs Gerbicz check failed many times and aborting (check your CPU, RAM, OC, heat etc.) Invalid certificate BOINC Client If you are getting an error in your BOINC client log or you cant upload/download new WUS: Scheduler request failed: Peer certificate cannot be authenticated you must update/replace the ca-bundle.crt from the BOINC client. ca-bundle.crt
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rebirther Volunteer moderator Project administrator Project developer Project tester Project scientist Send message Joined: 2 Jan 13 Posts: 8477 Credit: 178,780,813 RAC: 110	Message 451 - Posted: 2 Jan 2015, 20:05:06 UTC Last modified: 15 Oct 2025, 10:56:36 UTC
Badges total Sierpinski / Riesel Base Riesel Base Sierpinski Base Sierpinski / Riesel Base - short Sierpinski / Riesel Base - long Sierpinski / Riesel Base - average Riesel Base - short Sierpinski Base - short 10k, 100k, 500k, 1M, 2M, 5M, 10M, 20M, 50M, 100M, 250M, 500M, 1G, 2G, 5G, 10G Special Badges Bases proven Megaprimes found manual testing 1, 2, 5, 10, 15, 20, 25, 30, 35, 40, 50
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rebirther Volunteer moderator Project administrator Project developer Project tester Project scientist Send message Joined: 2 Jan 13 Posts: 8477 Credit: 178,780,813 RAC: 110	Message 600 - Posted: 10 Jan 2015, 11:45:02 UTC Last modified: 16 Jun 2026, 7:59:36 UTC
TOP5000 primes / How to report a prime If you have found a TOP5000 prime I will send you the prime by PM. You must enable in Community preferences: Notifications Immediately, by email to get a message. 1. If you dont have an account create one at https://t5k.org/bios/newprover.php, you will get a password by mail to login. 2. Create a new proof code (you only need one proof code to report all primes based on this project). Choose PRST and in the last field where you can find "none" write SRsieve,CRUS without any spaces. If you have already a proofcode click on the code and go to point 3 3. Enter the prime and submit. Currently primes must have a minimum of 900123 digits to get into the list Reporting primes The project will only reporting primes with bases <100k's left except it is a t5k. You will find them in the base results and the primelist.
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rebirther Volunteer moderator Project administrator Project developer Project tester Project scientist Send message Joined: 2 Jan 13 Posts: 8477 Credit: 178,780,813 RAC: 110	Message 680 - Posted: 17 Jan 2015, 9:53:45 UTC Last modified: 16 Dec 2025, 17:17:01 UTC
Hardware requirements non AVX AMD/Intel CPU 2.3Gh+ Recommended: AVX,AVX2/FMA3, AVX512 compatible AMD/Intel CPU 2.3Ghz+ AVX2/FMA3/AVX512 (producing more heat on your CPU, you need a really good cooling! Don't run the CPU if you have 90°C+ core temp (based on the CPU model).
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rebirther Volunteer moderator Project administrator Project developer Project tester Project scientist Send message Joined: 2 Jan 13 Posts: 8477 Credit: 178,780,813 RAC: 110	Message 698 - Posted: 18 Jan 2015, 8:43:20 UTC Last modified: 29 Apr 2026, 17:29:02 UTC
Apps runtime short -->sec-2h30min average -->40min-6h long -->3h+ (up to 10h+) standard -->sec-2h30min Based on an i7-7800x@3.9Ghz with AVX. List of apps:* srbase = Sierpinski / Riesel Base srbase2 = Riesel Base srbase3 = Sierpinski Base srbase4 = Sierpinski / Riesel Base - short srbase5 = Sierpinski / Riesel Base - long srbase6 = Sierpinski / Riesel Base - average srbase7 = Riesel Base - short srbase8 = Sierpinski Base - short srbase9 = Sierpinski / Riesel Base - average2 srbase10 = Sierpinski / Riesel Base - average3 srbase11 = Sierpinski / Riesel Base - long2 srbase12 = Sierpinski / Riesel Base - long3 TF = TF (GPU only)
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rebirther Volunteer moderator Project administrator Project developer Project tester Project scientist Send message Joined: 2 Jan 13 Posts: 8477 Credit: 178,780,813 RAC: 110	Message 1348 - Posted: 23 Apr 2015, 16:52:18 UTC Last modified: 19 Apr 2026, 17:00:01 UTC
Invitation code The invitation code for creating new accounts is pillepalle. It's the best SPAM protection in BOINC. You only can create new accounts over the website.
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rebirther Volunteer moderator Project administrator Project developer Project tester Project scientist Send message Joined: 2 Jan 13 Posts: 8477 Credit: 178,780,813 RAC: 110	Message 3795 - Posted: 27 Aug 2017, 10:12:40 UTC Last modified: 9 Oct 2025, 10:13:56 UTC
Multithreading / app_config.xml <app_config> <app> <name>srbase</name> <max_concurrent>1</max_concurrent> </app> <app> <name>srbase2</name> <max_concurrent>1</max_concurrent> </app> <app> <name>srbase3</name> <max_concurrent>1</max_concurrent> </app> <app> <name>srbase4</name> <max_concurrent>1</max_concurrent> </app> <app> <name>srbase5</name> <max_concurrent>1</max_concurrent> </app> <app> <name>srbase6</name> <max_concurrent>1</max_concurrent> </app> <app> <name>srbase7</name> <max_concurrent>1</max_concurrent> </app> <app> <name>srbase8</name> <max_concurrent>1</max_concurrent> </app> <app> <name>srbase9</name> <max_concurrent>1</max_concurrent> </app> <app> <name>srbase10</name> <max_concurrent>1</max_concurrent> </app> <app> <name>srbase11</name> <max_concurrent>1</max_concurrent> </app> <app> <name>srbase12</name> <max_concurrent>1</max_concurrent> </app> <app_version> <app_name>srbase</app_name> <cmdline>-t4</cmdline> <avg_ncpus>4</avg_ncpus> </app_version> <app_version> <app_name>srbase2</app_name> <cmdline>-t4</cmdline> <avg_ncpus>4</avg_ncpus> </app_version> <app_version> <app_name>srbase3</app_name> <cmdline>-t4</cmdline> <avg_ncpus>4</avg_ncpus> </app_version> <app_version> <app_name>srbase4</app_name> <cmdline>-t4</cmdline> <avg_ncpus>4</avg_ncpus> </app_version> <app_version> <app_name>srbase5</app_name> <cmdline>-t4</cmdline> <avg_ncpus>4</avg_ncpus> </app_version> <app_version> <app_name>srbase6</app_name> <cmdline>-t4</cmdline> <avg_ncpus>4</avg_ncpus> </app_version> <app_version> <app_name>srbase7</app_name> <cmdline>-t4</cmdline> <avg_ncpus>4</avg_ncpus> </app_version> <app_version> <app_name>srbase8</app_name> <cmdline>-t4</cmdline> <avg_ncpus>4</avg_ncpus> </app_version> <app_version> <app_name>srbase9</app_name> <cmdline>-t4</cmdline> <avg_ncpus>4</avg_ncpus> </app_version> <app_version> <app_name>srbase10</app_name> <cmdline>-t4</cmdline> <avg_ncpus>4</avg_ncpus> </app_version> <app_version> <app_name>srbase11</app_name> <cmdline>-t4</cmdline> <avg_ncpus>4</avg_ncpus> </app_version> <app_version> <app_name>srbase12</app_name> <cmdline>-t4</cmdline> <avg_ncpus>4</avg_ncpus> </app_version> </app_config> srbase = Sierpinski / Riesel Base srbase2 = Riesel Base srbase3 = Sierpinski Base srbase4 = Sierpinski / Riesel Base - short srbase5 = Sierpinski / Riesel Base - long srbase6 = Sierpinski / Riesel Base - average srbase7 = Riesel Base - short srbase8 = Sierpinski Base - short srbase9 = Sierpinski / Riesel Base - average2 srbase10 = Sierpinski / Riesel Base - average3 srbase11 = Sierpinski / Riesel Base - long2 srbase12 = Sierpinski / Riesel Base - long3 Remove only the lines you don't need to run short apps. Change the -tx commandline to use all of your cores you have / want to run.
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rebirther Volunteer moderator Project administrator Project developer Project tester Project scientist Send message Joined: 2 Jan 13 Posts: 8477 Credit: 178,780,813 RAC: 110	Message 5765 - Posted: 15 Mar 2020, 9:11:36 UTC Last modified: 7 Jun 2026, 7:43:41 UTC
Trial Factoring GPU Trial Factoring of Mersenne Prime candidates - checkpoints are working every ~1min+ (depends on your GPU card) - after a restart you will notice a 0 elapsed time, don't worry. You can always check your stderr.txt file where you are at current state - GPU max WUs in progress limit = 50 available apps: - Windows / Linux 64bit opencl for AMD cards, CUDA for Nvidia cards, IntelARC Running mfakto (opencl) - min_opencl_version 1.1 - support up to 9xxx - support INTEL ARC (B580+) * 1 full CPU core needed Running mfaktc (CUDA) - CUDA10 - driver >= 410.48 - CUDA11 - driver >= 450.80.02 - CUDA12 - driver >= 525.00 ARM apps - no multi-GPU support yet, always running on -d 0 Badges Runtime 100-1000M range 70-71 bit - done 71-72 bit - done 72-73 bit - done 73-74 bit - done 74-75 bit - done 75-76 bit - nnw, waiting to finish... 76-77 bit - 4h21min (@RX5500 XT/179M) 77-78 bit - 78-79 bit - 79-80 bit - 80-81 bit - 81-82 bit - 82-83 bit - 83-84 bit - 84-85 bit - cc_config.xml Disable iGPU <exclude_gpu> <url>http://srbase.my-firewall.org/sr5/</url> <type>ATI</type> <device_num>0</device_num> <app>TF</app> </exclude_gpu> Multi-GPU <cc_config> <options> <use_all_gpus>1</use_all_gpus> </options> </cc_config> Solution to run on any Device for another project: <cc_config> <options> <exclude_gpu> <url>http://srbase.my-firewall.org/sr5/</url> <type>ATI</type> <device_num>0</device_num> <app>TF</app> </exclude_gpu> <use_all_gpus>1</use_all_gpus> </options> </cc_config> cc_config.xml must be put in the BOINC data directory.
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rebirther Volunteer moderator Project administrator Project developer Project tester Project scientist Send message Joined: 2 Jan 13 Posts: 8477 Credit: 178,780,813 RAC: 110	Message 11696 - Posted: 21 May 2026, 8:54:27 UTC Last modified: 10 Jun 2026, 14:40:38 UTC
LL-dc double-checks Lucas-Lehmer work - checkpoints are working every ~2min+- (depends on your GPU card) - after a restart you will notice a 0 elapsed time, don't worry, you always can check your stderr.txt file where you are at current state - GPU max WUs in progress limit = 1 available apps: - Windows / Linux 64bit opencl for AMD and Nvidia cards Requirement: - cl_khr_fp64 //intel arc A serie doesn't have it - min_opencl_version 2.0 * x% of 1 CPU core needed Supported cards: - AMD: 5500+ - nvidia 1060+ - intel arc B5xxx (untested) cc_config.xml Disable iGPU <exclude_gpu> <url>http://srbase.my-firewall.org/sr5/</url> <type>ATI</type> <device_num>0</device_num> <app>LL-dc</app> </exclude_gpu> Checking estimated runtime - open slot folder and check stderr.txt with the 2nd ETA value Reducing log iterations writing on faster cards by app_config.xml <app_config> <app_version> <app_name>LL-dc</app_name> <plan_class>opencl_nvidia_200</plan_class> <cmdline>-log 400000</cmdline> </app_version> </app_config> or <app_config> <app_version> <app_name>LL-dc</app_name> <plan_class>opencl_ati_200</plan_class> <cmdline>-log 400000</cmdline> </app_version> </app_config> Put the app_config.xml file in the project folder estimated runtimes A2000 - 71h A4000 - 45h 1060 - 120h 1080 - 104h 1650 - 73h 2070 - 26h 3050 - 46h 3060 - 25h 3080 - 15h 4060 - 25h 4070 - 11h 4080 - 7,4h 4090 - 5h 5060 - 15h 5070 - 13h (win)/11h (linux) 5080 - 7,5h 5090 - 5.1h 5500 - 68h 5700 - 38h 6600 - 39h 9070 - 17h VII - 13,3h Badges
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rebirther
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2M in Sierpinski / Riesel Base credit

5M in Sierpinski / Riesel Base - short credit

1M in Sierpinski / Riesel Base - long credit

500k in Sierpinski / Riesel Base - average credit

General infos

- checkpoints every 1min
- fixed credits
- max WUs in progress = 80 per core
- max GPU WUs in progress = 50 per GPU
- anonymous platforms are not allowed
- deadline = different

CPU cache usage

FFT length * cpu cores or -tx = max CPU cache. (x for the amount of cores)

AVAST issues

There seems to be a problem with the Avast software.

Configure Avast exceptions

Also happened by getting:

transient upload error

Current issues / solutions

invalid WUs

Gerbicz check failed many times and aborting (check your CPU, RAM, OC, heat etc.)

Invalid certificate BOINC Client

If you are getting an error in your BOINC client log or you cant upload/download new WUS:

Scheduler request failed: Peer certificate cannot be authenticated

you must update/replace the ca-bundle.crt from the BOINC client.

ca-bundle.crt

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rebirther
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2M in Sierpinski / Riesel Base credit

Badges

total

Sierpinski / Riesel Base

Riesel Base

Sierpinski Base

Sierpinski / Riesel Base - short

Sierpinski / Riesel Base - long

Sierpinski / Riesel Base - average

Riesel Base - short

Sierpinski Base - short

10k, 100k, 500k, 1M, 2M, 5M, 10M, 20M, 50M, 100M, 250M, 500M, 1G, 2G, 5G, 10G

Special Badges

Bases proven

Megaprimes found

manual testing

1, 2, 5, 10, 15, 20, 25, 30, 35, 40, 50

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rebirther
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2M in Sierpinski / Riesel Base credit

TOP5000 primes / How to report a prime

If you have found a TOP5000 prime I will send you the prime by PM. You must enable in Community preferences: Notifications Immediately, by email to get a message.

1. If you dont have an account create one at https://t5k.org/bios/newprover.php, you will get a password by mail to login.

2. Create a new proof code (you only need one proof code to report all primes based on this project). Choose PRST and in the last field where you can find "none" write SRsieve,CRUS without any spaces. If you have already a proofcode click on the code and go to point 3

3. Enter the prime and submit.

Currently primes must have a minimum of 900123 digits to get into the list

Reporting primes

The project will only reporting primes with bases <100k's left except it is a t5k. You will find them in the base results and the primelist.

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rebirther
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2M in Sierpinski / Riesel Base credit

Hardware requirements

non AVX AMD/Intel CPU 2.3Gh+

Recommended:

AVX,AVX2/FMA3, AVX512 compatible AMD/Intel CPU 2.3Ghz+

AVX2/FMA3/AVX512 (producing more heat on your CPU, you need a really good cooling! Don't run the CPU if you have 90°C+ core temp (based on the CPU model).

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rebirther
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2M in Sierpinski / Riesel Base credit

Apps runtime

short -->sec-2h30min
average -->40min-6h
long -->3h+ (up to 10h+)
standard -->sec-2h30min

*Based on an i7-7800x@3.9Ghz with AVX.

List of apps:
srbase = Sierpinski / Riesel Base
srbase2 = Riesel Base
srbase3 = Sierpinski Base
srbase4 = Sierpinski / Riesel Base - short
srbase5 = Sierpinski / Riesel Base - long
srbase6 = Sierpinski / Riesel Base - average
srbase7 = Riesel Base - short
srbase8 = Sierpinski Base - short
srbase9 = Sierpinski / Riesel Base - average2
srbase10 = Sierpinski / Riesel Base - average3
srbase11 = Sierpinski / Riesel Base - long2
srbase12 = Sierpinski / Riesel Base - long3
TF = TF (GPU only)

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rebirther
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Invitation code

The invitation code for creating new accounts is pillepalle.
It's the best SPAM protection in BOINC. You only can create new accounts over the website.

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rebirther
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2M in Sierpinski / Riesel Base credit

Multithreading / app_config.xml

<app_config> <app> <name>srbase</name> <max_concurrent>1</max_concurrent> </app> <app> <name>srbase2</name> <max_concurrent>1</max_concurrent> </app> <app> <name>srbase3</name> <max_concurrent>1</max_concurrent> </app> <app> <name>srbase4</name> <max_concurrent>1</max_concurrent> </app> <app> <name>srbase5</name> <max_concurrent>1</max_concurrent> </app> <app> <name>srbase6</name> <max_concurrent>1</max_concurrent> </app> <app> <name>srbase7</name> <max_concurrent>1</max_concurrent> </app> <app> <name>srbase8</name> <max_concurrent>1</max_concurrent> </app> <app> <name>srbase9</name> <max_concurrent>1</max_concurrent> </app> <app> <name>srbase10</name> <max_concurrent>1</max_concurrent> </app> <app> <name>srbase11</name> <max_concurrent>1</max_concurrent> </app> <app> <name>srbase12</name> <max_concurrent>1</max_concurrent> </app> <app_version> <app_name>srbase</app_name> <cmdline>-t4</cmdline> <avg_ncpus>4</avg_ncpus> </app_version> <app_version> <app_name>srbase2</app_name> <cmdline>-t4</cmdline> <avg_ncpus>4</avg_ncpus> </app_version> <app_version> <app_name>srbase3</app_name> <cmdline>-t4</cmdline> <avg_ncpus>4</avg_ncpus> </app_version> <app_version> <app_name>srbase4</app_name> <cmdline>-t4</cmdline> <avg_ncpus>4</avg_ncpus> </app_version> <app_version> <app_name>srbase5</app_name> <cmdline>-t4</cmdline> <avg_ncpus>4</avg_ncpus> </app_version> <app_version> <app_name>srbase6</app_name> <cmdline>-t4</cmdline> <avg_ncpus>4</avg_ncpus> </app_version> <app_version> <app_name>srbase7</app_name> <cmdline>-t4</cmdline> <avg_ncpus>4</avg_ncpus> </app_version> <app_version> <app_name>srbase8</app_name> <cmdline>-t4</cmdline> <avg_ncpus>4</avg_ncpus> </app_version> <app_version> <app_name>srbase9</app_name> <cmdline>-t4</cmdline> <avg_ncpus>4</avg_ncpus> </app_version> <app_version> <app_name>srbase10</app_name> <cmdline>-t4</cmdline> <avg_ncpus>4</avg_ncpus> </app_version> <app_version> <app_name>srbase11</app_name> <cmdline>-t4</cmdline> <avg_ncpus>4</avg_ncpus> </app_version> <app_version> <app_name>srbase12</app_name> <cmdline>-t4</cmdline> <avg_ncpus>4</avg_ncpus> </app_version> </app_config>

srbase = Sierpinski / Riesel Base
srbase2 = Riesel Base
srbase3 = Sierpinski Base
srbase4 = Sierpinski / Riesel Base - short
srbase5 = Sierpinski / Riesel Base - long
srbase6 = Sierpinski / Riesel Base - average
srbase7 = Riesel Base - short
srbase8 = Sierpinski Base - short
srbase9 = Sierpinski / Riesel Base - average2
srbase10 = Sierpinski / Riesel Base - average3
srbase11 = Sierpinski / Riesel Base - long2
srbase12 = Sierpinski / Riesel Base - long3

Remove only the lines you don't need to run short apps.

Change the -tx commandline to use all of your cores you have / want to run.

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rebirther
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2M in Sierpinski / Riesel Base credit

Trial Factoring

GPU Trial Factoring of Mersenne Prime candidates

- checkpoints are working every ~1min+ (depends on your GPU card)
- after a restart you will notice a 0 elapsed time, don't worry. You can always check your stderr.txt file where you are at current state
- GPU max WUs in progress limit = 50

available apps:
- Windows / Linux 64bit opencl for AMD cards, CUDA for Nvidia cards, IntelARC

Running mfakto (opencl)
- min_opencl_version 1.1
- support up to 9xxx
- support INTEL ARC (B580+)
* 1 full CPU core needed

Running mfaktc (CUDA)
- CUDA10
- driver >= 410.48

- CUDA11
- driver >= 450.80.02

- CUDA12
- driver >= 525.00

ARM apps
- no multi-GPU support yet, always running on -d 0

Badges

Runtime 100-1000M range

70-71 bit - done
71-72 bit - done
72-73 bit - done
73-74 bit - done
74-75 bit - done
75-76 bit - nnw, waiting to finish...
76-77 bit - 4h21min (@RX5500 XT/179M)
77-78 bit -
78-79 bit -
79-80 bit -
80-81 bit -
81-82 bit -
82-83 bit -
83-84 bit -
84-85 bit -

cc_config.xml

Disable iGPU

<exclude_gpu> <url>http://srbase.my-firewall.org/sr5/</url> <type>ATI</type> <device_num>0</device_num> <app>TF</app> </exclude_gpu>

Multi-GPU

<cc_config> <options> <use_all_gpus>1</use_all_gpus> </options> </cc_config>

Solution to run on any Device for another project:

<cc_config> <options> <exclude_gpu> <url>http://srbase.my-firewall.org/sr5/</url> <type>ATI</type> <device_num>0</device_num> <app>TF</app> </exclude_gpu> <use_all_gpus>1</use_all_gpus> </options> </cc_config>

cc_config.xml must be put in the BOINC data directory.

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rebirther
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2M in Sierpinski / Riesel Base credit

LL-dc

double-checks Lucas-Lehmer work

- checkpoints are working every ~2min+- (depends on your GPU card)
- after a restart you will notice a 0 elapsed time, don't worry, you always can check your stderr.txt file where you are at current state
- GPU max WUs in progress limit = 1

available apps:
- Windows / Linux 64bit opencl for AMD and Nvidia cards

Requirement:
- cl_khr_fp64 //intel arc A serie doesn't have it
- min_opencl_version 2.0
* x% of 1 CPU core needed

Supported cards:
- AMD: 5500+
- nvidia 1060+
- intel arc B5xxx (untested)

cc_config.xml

Disable iGPU

<exclude_gpu> <url>http://srbase.my-firewall.org/sr5/</url> <type>ATI</type> <device_num>0</device_num> <app>LL-dc</app> </exclude_gpu>

Checking estimated runtime

- open slot folder and check stderr.txt with the 2nd ETA value

Reducing log iterations writing on faster cards by app_config.xml

<app_config> <app_version> <app_name>LL-dc</app_name> <plan_class>opencl_nvidia_200</plan_class> <cmdline>-log 400000</cmdline> </app_version> </app_config>

<app_config> <app_version> <app_name>LL-dc</app_name> <plan_class>opencl_ati_200</plan_class> <cmdline>-log 400000</cmdline> </app_version> </app_config>

Put the app_config.xml file in the project folder

estimated runtimes

A2000 - 71h
A4000 - 45h
1060 - 120h
1080 - 104h
1650 - 73h
2070 - 26h
3050 - 46h
3060 - 25h
3080 - 15h
4060 - 25h
4070 - 11h
4080 - 7,4h
4090 - 5h
5060 - 15h
5070 - 13h (win)/11h (linux)
5080 - 7,5h
5090 - 5.1h
5500 - 68h
5700 - 38h
6600 - 39h
9070 - 17h
VII - 13,3h

Badges

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