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drummers-lowrise
1) Message boards : Number crunching : LLR2 installed on all big LLR projects (Message 145281)
Posted 8 days ago by Profile JamesProject donor
Thanks for this speeding up for the double check. First time I did not trust it. Where can I see how does it work?

If you're on discord: https://canary.discord.com/channels/357493752434130944/357550381431259136/745508916561051678

Otherwise, Pavel has infographics that resumes how the fast double-check works:
https://raw.githubusercontent.com/patnashev/llr2/master/demo/ProofInfo.png
https://raw.githubusercontent.com/patnashev/llr2/master/demo/ProofInfoP.png
https://raw.githubusercontent.com/patnashev/llr2/master/demo/ProofMagic.png

I do suggest you read the explanation on discord. Pavel wrote quite a bit of explanation there.
2) Message boards : Problems and Help : Genefer Tasks All Coming Back Invalid (Message 143805)
Posted 55 days ago by Profile JamesProject donor
Apologies for the delayed response, can you try adding <ignore_intel_dev> to your cc_config.xml?
<cc_config> <options> <ignore_intel_dev>0</ignore_intel_dev> </options> </cc_config>


This should disable your Intel iGPU for BOINC
3) Message boards : Number crunching : Rtx 30 series (Message 143129)
Posted 79 days ago by Profile JamesProject donor
They claim 2x FP32 performance among other things, which sounds really good for now...

I was looking at the lineup and was hesitant on a 3070 given that it runs on GDDR6, as opposed to the 3080 and 3090 running on GDDR6X. If I remember correctly, most genefer tasks are memory bandwidth limited on Turing already, and Turing runs on GDDR6.
4) Message boards : AP26 - AP27 Search : AP27 Update Testing (Message 141706)
Posted 133 days ago by Profile JamesProject donor
Ran my reservations, everything looks good.

Linux avx singlethreaded
25 366384 6171054912832631 000B2E610007764F 26 44121555 136926916457315893 05427BA60005EB17 26 47715109 161004359399459161 05B02649000530C8 27 81292139 224584605939537911 09B0D6D700051684

Linux avx multithreaded
25 366384 6171054912832631 000B2E610007764F 26 44121555 136926916457315893 05427BA60005EB17 26 47715109 161004359399459161 05B02649000530C8 27 81292139 224584605939537911 09B0D6D700051684

Windows single-threaded avx2
25 366384 6171054912832631 000B2E610007764F 26 44121555 136926916457315893 05427BA60005EB17 26 47715109 161004359399459161 05B02649000530C8 27 81292139 224584605939537911 09B0D6D700051684

Windows multithreaded avx2
25 366384 6171054912832631 000B2E610007764F 26 44121555 136926916457315893 05427BA60005EB17 26 47715109 161004359399459161 05B02649000530C8 27 81292139 224584605939537911 09B0D6D700051684

Windows GPU
25 366384 6171054912832631 000B2E610007764F 26 44121555 136926916457315893 05427BA60005EB17 26 47715109 161004359399459161 05B02649000530C8 27 81292139 224584605939537911 09B0D6D700051684
5) Message boards : AP26 - AP27 Search : AP27 Update Testing (Message 141705)
Posted 133 days ago by Profile JamesProject donor
Reserving D9&D11--MT SSE2&SSE4.1 Windows
How can I setup the app to use a different transform?

If you run the program with no parameters, it tells you:
Usage: ..\ap26_cpu_windows64.exe KMIN KMAX SHIFT -cputype -t # -cputype is used to force an instruction set. Valid types: -sse2 -sse41 -avx -avx2 -avx512. Default is highest available.

So to use sse2, you'd run
ap26_cpu_windows64.exe KMIN KMAX SHIFT -cputype -sse2
6) Message boards : AP26 - AP27 Search : AP27 Update Testing (Message 141700)
Posted 133 days ago by Profile JamesProject donor
I'll take:
D6 - Nvidia Windows C12 - CPU Singlethreaded AVX Linux C13 - CPU Multithreaded AVX Linux D14 - CPU Singlethreaded AVX2 Windows D15 - CPU Multithreaded AVX2 Windows
7) Message boards : AP26 - AP27 Search : AP27 Update Testing (Message 141699)
Posted 133 days ago by Profile JamesProject donor
PROBLEM:

The program or feature from "C:\my_path_here\ap27_cpu_windows64.exe" cannot start or run due to the incompatibility with 64-bit versions of Windows. Please contact the software vendor to ask if a 64-bit Windows compatible version is available.


What happened?
I downloaded the application from here
but windows gave the error posted above when I try to run it in cmdline.

Which version of Windows are you running, and on what hardware? The windows binaries works fine on my 64 bit Windows. Wild guess here, but perhaps you got a corrupted download.

Check against:
File: ap26_cpu_windows64.exe CRC-32: 88802d51 SHA-1: 121ee27d10c355fb482db2800f54fc000082e22c SHA-256: 2443a2d2143a74e343bdb2522c4a4a034e125e823053bcf3c04317573368946d
8) Message boards : General discussion : Not a happy camper :( (Message 141698)
Posted 133 days ago by Profile JamesProject donor
A double check is still a double check :) Many have yet to even touch a prime MEGA task.

Better luck next time!
9) Message boards : Number crunching : Alan Turing's Birthday Challenge (Message 141551)
Posted 139 days ago by Profile JamesProject donor
Yup, just make sure our posts dont flood it! That's the original reason this way was abandoned. *pls delete our posts*

It's no big deal, new posts don't hurt.

Cleanup:
Jul 9 07:00 UTC: 50 tasks outstanding; 2 affecting individual (2) scoring positions; 0 affecting team (0) scoring positions.
Jul 9 20:00 UTC: 36 tasks outstanding; 0 affecting individual (0) scoring positions; 0 affecting team (0) scoring positions. Standings are now final.
10) Message boards : Number crunching : GTX 1030 good card for GFN? (Message 141550)
Posted 139 days ago by Profile JamesProject donor


I have a few of these, but I wouldn't use them for anything other than GFN15, and even then they're pretty slow now... If I remember correctly, and it has been a while since I've run one so I might be wrong, an AP27 task takes about 90 minutes with them, so you're not particularly likely to get first.

BRUH.
Is it memory bandwidth limits or is my Vega 8 just too bad? AP27 takes freaking 16 hours to complete......

You are comparing a dedicated graphics card versus an integrated one. Not only is it constrained to a laptop's thermals, it also shares all its memory bandwidth with the CPU.


But I agree with GTX1650. It's a fine card for its price. If you have more money you'd consider RX5500XT too.

If you're buying a GPU solely for crunching and have no preference for which brand to buy from, Nvidia cards are usually slightly better at performing compute tasks while AMD cards have slightly better Linux driver support.


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