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Search: Posts Made By: frmky
Forum: Msieve 2021-07-21, 17:56
Replies: 2,032
Views: 167,634
Posted By frmky
Great! Is anyone still working on 2,1404+ or...

Great! Is anyone still working on 2,1404+ or 2,2630M? It appears we have good polys for both now. That just leaves 2,2870M.
Forum: Msieve 2021-07-21, 05:33
Replies: 2,032
Views: 167,634
Posted By frmky
2,1437- is queued for sieving.

2,1437- is queued for sieving.
Forum: Msieve 2021-07-19, 03:50
Replies: 5
Views: 169
Posted By frmky
You need to copy over not only the msieve binary...

You need to copy over not only the msieve binary but also the built CUDA libraries in their directories. Create a cub directory and copy sort_engine.so from your build ./cub directory to that one.
Forum: NFS@Home 2021-07-13, 23:08
Replies: 169
Views: 11,517
Posted By frmky
Factored and posted. Just over 1 hour for a 5M...

Factored and posted. Just over 1 hour for a 5M matrix on a Tesla V100.
Forum: NFS@Home 2021-07-12, 03:18
Replies: 169
Views: 11,517
Posted By frmky
I'll take 742__757_7m1. I'll use it to exercise...

I'll take 742__757_7m1. I'll use it to exercise the GPU LA code on a new problem.
Forum: Msieve 2021-07-02, 19:29
Replies: 5
Views: 331
Posted By frmky
I reimplemented the NxB_BxB CUDA kernel to bite...

I reimplemented the NxB_BxB CUDA kernel to bite off 2 bits at a time and make 4 (or actually 3 since the 00 table isn't needed) arrays in GPU shared memory rather than doing this on the cpu and...
Forum: Msieve 2021-06-23, 20:28
Replies: 2,032
Views: 167,634
Posted By frmky
Thanks for the catch! Will do.

Thanks for the catch! Will do.
Forum: Msieve 2021-06-23, 19:41
Replies: 2,032
Views: 167,634
Posted By frmky
Sam asked NFS@Home to complete the following five...

Sam asked NFS@Home to complete the following five numbers by GNFS, so I thought it best to ask for polynomials from the world experts. These will make "easy" numbers for the lasievef queue. Anyone up...
Forum: Msieve 2021-06-23, 19:25
Replies: 8
Views: 368
Posted By frmky
It looks like it happened about when the first...

It looks like it happened about when the first checkpoint would be expected to be written. Does a msieve.dat.chk or msieve.dat.bak.chk file exist in the directory?
Is space available on the drive? ...
Forum: Factoring 2021-06-12, 19:14
Replies: 413
Views: 16,719
Posted By frmky
Brilliant even!

Brilliant even!
Forum: Factoring 2021-06-07, 22:08
Replies: 413
Views: 16,719
Posted By frmky
Sorry, I forgot to mark (9, -4) in the...

Sorry, I forgot to mark (9, -4) in the spreadsheet. It's almost done.
Forum: Factoring 2021-06-07, 02:03
Replies: 413
Views: 16,719
Posted By frmky
For these polynomials, there is no small prime p...

For these polynomials, there is no small prime p for which the algebraic polynomial mod p is irreducible. The square root algorithm requires one. msieve forges ahead anyway with a small prime, which...
Forum: NFS@Home 2021-05-29, 18:34
Replies: 7
Views: 408
Posted By frmky
The university is doing a disaster drill today...

The university is doing a disaster drill today which includes cutting off access to the internet and checking the failover of critical systems. So access today will be sporadic.

The error is...
Forum: Msieve 2021-05-22, 16:16
Replies: 101
Views: 44,153
Posted By frmky
As further evidence that the filtering bug is...

As further evidence that the filtering bug is squashed, I just completed a run using 33-bit large primes with over 1 billion unique relations.

https://pastebin.com/J6hbcjzD
Forum: NFS@Home 2021-05-18, 21:04
Replies: 75
Views: 19,327
Posted By frmky
The results processing scripts are back on and...

The results processing scripts are back on and caught up.
Forum: NFS@Home 2021-05-17, 05:52
Replies: 75
Views: 19,327
Posted By frmky
Yes, the server went down last night for a few...

Yes, the server went down last night for a few hours while I slept. The PHP memory heap manager zend_mm_heap became corrupted and took down the web server. First time I've seen that error. Apache...
Forum: NFS@Home 2021-05-15, 16:37
Replies: 75
Views: 19,327
Posted By frmky
The disks are the slowest part of the system....

The disks are the slowest part of the system. With results processing off reads are currently about 1MB/s and writes bouncing between 5-10 MB/s It's RAID6 on spinning disks, both of which slows it...
Forum: NFS@Home 2021-05-15, 16:07
Replies: 75
Views: 19,327
Posted By frmky
Work has been going out, but it gets immediately...

Work has been going out, but it gets immediately gobbled up. It seems nearly everyone wants work from the lasieve_5f queue, so I've temporarily stopped feeding work from the other queues until those...
Forum: Msieve 2021-05-12, 18:47
Replies: 41
Views: 22,116
Posted By frmky
Set the cache size in the source, optionally...

Set the cache size in the source, optionally remove the loop unrolling, set the optimization flags for the machine in Makefile (really just -Ofast -mcpu=native is usually fine) and compile. In the...
Forum: Msieve 2021-05-10, 04:38
Replies: 41
Views: 22,116
Posted By frmky
nVidia Tesla V100 with now old CUDA code that...

nVidia Tesla V100 with now old CUDA code that only supports 64-bit vectors
1h 26m
53 minutes after many code changes.
Forum: Msieve 2021-05-09, 22:24
Replies: 41
Views: 22,116
Posted By frmky
One node with 2 x Cavium ThunderX2 CN9980 32-core...

One node with 2 x Cavium ThunderX2 CN9980 32-core 64-bit ARM cpus and DDR4 memory.

VBITS = 64 2h 57m
VBITS = 128 2h 1m
VBITS = 256 2h 2m
Forum: Msieve 2021-05-09, 20:16
Replies: 41
Views: 22,116
Posted By frmky
common/lanczos/cpu/lanczos_cpu.h:#define...

common/lanczos/cpu/lanczos_cpu.h:#define MAX_THREADS 32
Forum: Msieve 2021-05-09, 08:57
Replies: 41
Views: 22,116
Posted By frmky
Each node has a Fujitsu A64FX 64-bit ARM...

Each node has a Fujitsu A64FX 64-bit ARM processor with 48 cores and 32 GB HBM memory divided into 4 NUMA regions.

VBITS = 128
1 node 3h 30m
2 nodes 1h 58m
4 nodes 1h 10m
8 nodes 0h 41m
...
Forum: GPU Computing 2021-05-09, 02:56
Replies: 22
Views: 1,066
Posted By frmky
Are you cooling it? Tesla cards often don't have...

Are you cooling it? Tesla cards often don't have a fan installed and require a high-speed fan to keep it cool.
Forum: Factoring 2021-05-06, 01:28
Replies: 964
Views: 108,241
Posted By frmky
Yes, I think so. Along with computing resources...

Yes, I think so. Along with computing resources to complete both the sieving and linear algebra.
Showing results 1 to 25 of 1000

 
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