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Forum: Msieve 2021-09-18, 15:59
Replies: 52
Sticky: Msieve GPU LA
Views: 2,561
Posted By frmky
Does the lasieve5 code work correctly with 34-bit...

Does the lasieve5 code work correctly with 34-bit large primes? I know the check is commented out, but I haven't tested it.
Forum: NFS@Home 2021-09-18, 08:09
Replies: 226
Views: 15,882
Posted By frmky
118__231_7m1 is done. gqtw0yPt

118__231_7m1 is done.

gqtw0yPt
Forum: Msieve 2021-09-18, 03:58
Replies: 52
Sticky: Msieve GPU LA
Views: 2,561
Posted By frmky
For 2,2174L, 1355M relations yielded 734M...

For 2,2174L, 1355M relations yielded 734M uniques. With nearly 50% duplicates, we have clearly reached the limit for 16e. Anyway, filtering yielded
matrix is 102063424 x 102063602 (51045.3 MB) with...
Forum: Msieve 2021-09-17, 19:47
Replies: 52
Sticky: Msieve GPU LA
Views: 2,561
Posted By frmky
No. The server is currently using 467G of 3.6T.

No. The server is currently using 467G of 3.6T.
Forum: Msieve 2021-09-17, 14:56
Replies: 52
Sticky: Msieve GPU LA
Views: 2,561
Posted By frmky
CUDA doesn't allow display updates while a kernel...

CUDA doesn't allow display updates while a kernel is running. The only way to improve responsiveness without using a second GPU is to shorten the kernel run times. The longest kernel is the SpMV, and...
Forum: Msieve 2021-09-16, 06:00
Replies: 52
Sticky: Msieve GPU LA
Views: 2,561
Posted By frmky
Today I expanded the allowed values of VBITS to...

Today I expanded the allowed values of VBITS to any of 64, 128, 192, 256, 320, 384, 448, or 512. This works on both CPUs and GPUs, but I don't expect much, if any, speedup on CPUs. As a GPU...
Forum: NFS@Home 2021-09-15, 18:57
Replies: 215
Views: 15,594
Posted By frmky
For a workstation (or extravagant home system)...

For a workstation (or extravagant home system) look at the RTX A6000. It's likely faster than a V100 for about half the price (currently ~$5k). For that matter the RTX 3090, currently ~$1.5k, will...
Forum: NFS@Home 2021-09-14, 17:54
Replies: 215
Views: 15,594
Posted By frmky
f77_134p1 is done...

f77_134p1 is done (https://pastebin.com/raw/cYSEKUH9).
Forum: Msieve 2021-09-13, 05:22
Replies: 52
Sticky: Msieve GPU LA
Views: 2,561
Posted By frmky
I spent time with Nsight Compute looking at the...

I spent time with Nsight Compute looking at the SpMV kernel. As expected for SpMV it's memory bandwidth limited, so increasing occupancy to hide latency should help. I adjusted parameters to reduce...
Forum: NFS@Home 2021-09-12, 17:34
Replies: 226
Views: 15,882
Posted By frmky
Just doing a little housekeeping. Finished off...

Just doing a little housekeeping. Finished off the ready but unclaimed ones. :smile:
Forum: NFS@Home 2021-09-12, 17:31
Replies: 168
Views: 13,348
Posted By frmky
3p2_551 is done...

3p2_551 is done (https://pastebin.com/raw/Cm95PR4k).
Forum: NFS@Home 2021-09-12, 06:15
Replies: 215
Views: 15,594
Posted By frmky
f60_142p1 is done...

f60_142p1 is done (https://pastebin.com/raw/95ASAF3X).
Forum: NFS@Home 2021-09-12, 01:30
Replies: 226
Views: 15,882
Posted By frmky
363__249_11m1 is done...

363__249_11m1 is done (https://pastebin.com/raw/qxztWbq2).
Forum: NFS@Home 2021-09-11, 16:31
Replies: 226
Views: 15,882
Posted By frmky
You all solved it! Yes, the polynomial from last...

You all solved it! Yes, the polynomial from last year with the same name was found and used by BOINC. Our first name collision.
Forum: NFS@Home 2021-09-11, 07:15
Replies: 226
Views: 15,882
Posted By frmky
This is odd. When the number was first created...

This is odd. When the number was first created and moved into sieving, it had the following as the polynomial:
$ cat download/267/417__011_3m1.poly
n:...
Forum: Aliquot Sequences 2021-09-06, 04:11
Replies: 524
Views: 63,335
Posted By frmky
If it would help, I could do the postprocessing...

If it would help, I could do the postprocessing of one of them either on gpus or on the A64FX cluster.
Forum: Factoring 2021-09-04, 22:01
Replies: 91
Views: 3,399
Posted By frmky
Does it affect the runtime? I don't care much...

Does it affect the runtime? I don't care much about the compile time. Just compile a few small kernels for testing, and once it's stable include a good coverage of kernels and just let it compile...
Forum: Factoring 2021-09-03, 07:02
Replies: 91
Views: 3,399
Posted By frmky
Nearly all of the factors that I found for...

Nearly all of the factors that I found for Factoring for a Publication 2 used this code.
Forum: NFS@Home 2021-09-03, 06:57
Replies: 1,849
Views: 155,690
Posted By frmky
I increased the wu generation limits so there's...

I increased the wu generation limits so there's plenty of work available now.
Forum: Factoring 2021-09-02, 22:28
Replies: 91
Views: 3,399
Posted By frmky
I think this can be triggered if the version of...

I think this can be triggered if the version of CUDA supported by the driver doesn't match the toolkit version. But this is usually ok as long as the driver is a little newer. I think both this and...
Forum: Factoring 2021-09-01, 21:10
Replies: 91
Views: 3,399
Posted By frmky
cudacommon.h is missing from the git repository.

cudacommon.h is missing from the git repository.
Forum: Aliquot Sequences 2021-09-01, 20:38
Replies: 524
Views: 63,335
Posted By frmky
I have run a total of 10240 curves at B1=850M...

I have run a total of 10240 curves at B1=850M with no factor found.
Forum: Factoring 2021-08-30, 19:34
Replies: 91
Views: 3,399
Posted By frmky
Is there a simpler way to distribute stage 2...

Is there a simpler way to distribute stage 2 across multiple cores than creating a script to use the -save option with B2=0, split the save file, then launch multiple ecm processes with -resume?
Forum: Factoring 2021-08-30, 18:52
Replies: 91
Views: 3,399
Posted By frmky
Yes, test.gpuecm completes successfully both with...

Yes, test.gpuecm completes successfully both with and without -cgbn. I'm using a V100 with CUDA 11.3.
Forum: Aliquot Sequences 2021-08-29, 02:48
Replies: 524
Views: 63,335
Posted By frmky
Overnight last night I ran stage 1 on 2560 curves...

Overnight last night I ran stage 1 on 2560 curves with B1=85e7 using the new gpu ecm using CGBN. I have stage 2 on those distributed across 8 nodes right now, and I'm running another 2560 stage 1's...
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