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Forum: Aliquot Sequences 2022-08-10, 05:27
Replies: 157
Views: 53,584
Posted By frmky
A little more sieving was all it needed. LA is...

A little more sieving was all it needed. LA is running now on four A100 GPUS.
linear algebra completed 514317 of 109926366 dimensions (0.5%, ETA 70h 7m)
Forum: NFS@Home 2022-08-09, 18:17
Replies: 1,930
Views: 184,904
Posted By frmky
Thanks! Should be good now.

Thanks! Should be good now.
Forum: Msieve 2022-08-08, 17:24
Replies: 105
Views: 30,328
Posted By frmky
Not according to

Not according to
Forum: NFS@Home 2022-08-08, 01:22
Replies: 101
Views: 6,389
Posted By frmky
314__757_19m1 and 2_2862M are done. NXEUj0B8...

314__757_19m1 and 2_2862M are done.

NXEUj0B8

61X96VvA
Forum: Msieve 2022-08-08, 00:05
Replies: 105
Views: 30,328
Posted By frmky
That would be the line ...

That would be the line
CUDA_TRY(cuModuleLoad(&t->gpu_module, "stage1_core.ptx"))
Make sure you have the files stage1_core.ptx and lanczos_kernel.ptx in the same directory in which you are running...
Forum: Aliquot Sequences 2022-08-07, 19:03
Replies: 157
Views: 53,584
Posted By frmky
I'm not getting a valid matrix. At TD of 110, I'm...

I'm not getting a valid matrix. At TD of 110, I'm getting
Sun Aug 7 13:35:33 2022 matrix is 119071786 x 119071963 (52830.3 MB) with weight 16308582657 (136.96/col)
Sun Aug 7 13:35:33 2022 ...
Forum: Msieve 2022-08-06, 03:02
Replies: 105
Views: 30,328
Posted By frmky
Did you remember the git checkout update_cub

Did you remember the
git checkout update_cub
Forum: NFS@Home 2022-08-05, 20:15
Replies: 101
Views: 6,389
Posted By frmky
11m3_825M is done. ARD2S29b

11m3_825M is done.

ARD2S29b
Forum: Msieve 2022-08-05, 17:25
Replies: 105
Views: 30,328
Posted By frmky
Then recompile with make clean make all...

Then recompile with
make clean
make all CUDA=61 VBITS=256
Forum: Msieve 2022-08-05, 01:33
Replies: 105
Views: 30,328
Posted By frmky
sudo apt install zlib1g zlib1g-dev will resolve...

sudo apt install zlib1g zlib1g-dev
will resolve the error with -lz.

With CUDA 11.6, you might need to use the update_cub branch instead of msieve-lacuda-nfsathome branch. After the git clone, go...
Forum: NFS@Home 2022-08-04, 18:21
Replies: 26
Views: 2,422
Posted By frmky
C250_129_118 is done. RFzEJ2TP

C250_129_118 is done.

RFzEJ2TP
Forum: And now for something completely different 2022-08-02, 20:45
Replies: 49
Views: 10,585
Posted By frmky
To no one's surprise, p(1000007396)...

To no one's surprise, p(1000007396) (http://factordb.com/index.php?id=1100000003830324121) is prime. :smile:
Forum: NFS@Home 2022-07-31, 00:27
Replies: 101
Views: 6,389
Posted By frmky
Eight A100s solved it in just under 3 hours.

Eight A100s solved it in just under 3 hours.
Forum: NFS@Home 2022-07-30, 18:25
Replies: 107
Views: 9,195
Posted By frmky
11p9_254 is done. VBMhLADD

11p9_254 is done.

VBMhLADD
Forum: Lounge 2022-07-30, 18:03
Replies: 296
Views: 45,617
Posted By frmky
Huh? I didn't hear you.

Huh? I didn't hear you.
Forum: Msieve 2022-07-29, 16:50
Replies: 105
Views: 30,328
Posted By frmky
As I said earlier...

As I said earlier...
Forum: Msieve 2022-07-29, 03:49
Replies: 105
Views: 30,328
Posted By frmky
Once you have installed the compiler and CUDA...

Once you have installed the compiler and CUDA toolkit...
https://docs.nvidia.com/cuda/cuda-installation-guide-linux/index.html#ubuntu-installation

sudo apt install git libgmp-dev
git clone...
Forum: NFS@Home 2022-07-28, 04:59
Replies: 101
Views: 6,389
Posted By frmky
2_1419m1 is done. tWgmxpJX

2_1419m1 is done.

tWgmxpJX
Forum: Msieve 2022-07-28, 01:22
Replies: 105
Views: 30,328
Posted By frmky
That's an old version that doesn't contain my...

That's an old version that doesn't contain my work on the GPU LA. I'm not aware of anyone that's compiled a Windows version with my changes.

There's a guide to using CUDA with WSL2 at...
Forum: Msieve 2022-07-27, 19:29
Replies: 10
Views: 242
Posted By frmky
I was just looking at the better scaling of...

I was just looking at the better scaling of msieve's block Lanczos using 3rd gen NVLink. On both current CPU clusters and 2nd gen NVLink connecting V100s, msieve's runtime consistently scales as...
Forum: Msieve 2022-07-26, 18:42
Replies: 10
Views: 242
Posted By frmky
If that command didn't exit with an error...

If that command didn't exit with an error message, then you weren't using an msieve binary compiled with MPI support. MPI is a compile-time option.

A single socket, 12 core CPU will likely not...
Forum: Cunningham Tables 2022-07-25, 20:30
Replies: 19
Views: 16,751
Posted By frmky
2,2246M, and now that the NFS@Home linux sieves...

2,2246M, and now that the NFS@Home linux sieves support octics, 2,2350M, 2,1180+ and 2,2390L are up next.
Forum: NFS@Home 2022-07-25, 03:24
Replies: 96
Views: 6,068
Posted By frmky
I don't mind doing this, but I doubt it'll have...

I don't mind doing this, but I doubt it'll have much effect. Most active participants manually select which queues they do. Many run only the largest queue on computers with sufficient memory, and...
Forum: Msieve 2022-07-24, 19:57
Replies: 105
Views: 30,328
Posted By frmky
No threads. After compiling the...

No threads. After compiling the msieve-lacuda-nfsathome branch with the option CUDA=75, run with
-nc2 -g 0 -v
where the number after -g specifies which gpu to use. Without the -g option, it uses...
Forum: NFS@Home 2022-07-24, 07:08
Replies: 107
Views: 9,195
Posted By frmky
That surprisingly accurately matches my rough...

That surprisingly accurately matches my rough prediction. For msieve, each generation, P100 to V100 to A100, approximately doubles the speed, so a P100 should take roughly 4x as long as an A100. And...
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