Posts by zlodeck

1) Message boards : Number crunching : Issue with second GPU (Message 10148)
Posted 1 Oct 2024 by zlodeck

ERROR: cudaGetLastError() returned 209: no kernel image is available for execution on the device

Looks like the GTX960 is too old and was not compiled in mfaktc with older cc.

No, it looks like CC 5.2 is enough to run mfaktc with "barrett76_mul32_gs" kernel. Probably large GPUSieveSize (2047Mi bits vs 64Mi bits below) may be an issue for GTX960 with 2Gb memory onboard.

2024-10-01 12:16:10 (9532): wrapper (7.24.26018): starting
2024-10-01 12:16:10 (9532): wrapper: running mfaktc-win-64.exe (-d 0)
2024-10-01 12:16:10 (9532): wrapper: created child process 8352
mfaktc v0.21 (64bit built)

Compiletime options
THREADS_PER_BLOCK 256
SIEVE_SIZE_LIMIT 32kiB
SIEVE_SIZE 193154bits
SIEVE_SPLIT 250
MORE_CLASSES enabled

Runtime options
SievePrimes 25000
SievePrimesAdjust 1
SievePrimesMin 5000
SievePrimesMax 100000
NumStreams 3
CPUStreams 3
GridSize 3
GPU Sieving enabled
GPUSievePrimes 82486
GPUSieveSize 64Mi bits
GPUSieveProcessSize 16Ki bits
Checkpoints enabled
CheckpointDelay 60s
WorkFileAddDelay disabled
Stages enabled
StopAfterFactor class
PrintMode full
V5UserID (none)
ComputerID (none)
AllowSleep no
TimeStampInResults no

CUDA version info
binary compiled for CUDA 10.0
CUDA runtime version 10.0
CUDA driver version 11.30

CUDA device info
name NVIDIA GeForce GTX 980
compute capability 5.2
max threads per block 1024
max shared memory per MP 98304 byte
number of multiprocessors 16
CUDA cores per MP 128
CUDA cores - total 2048
clock rate (CUDA cores) 1329MHz
memory clock rate: 3505MHz
memory bus width: 256 bit

Automatic parameters
threads per grid 1048576
GPUSievePrimes (adjusted) 82486
GPUsieve minimum exponent 1055144

running a simple selftest...
Selftest statistics
number of tests 107
successfull tests 107

selftest PASSED!

got assignment: exp=178691207 bit_min=75 bit_max=76 (42.82 GHz-days)
Starting trial factoring M178691207 from 2^75 to 2^76 (42.82 GHz-days)
k_min = 105710103187920
k_max = 211420206384062
Using GPU kernel "barrett76_mul32_gs"
Date Time | class Pct | time ETA | GHz-d/day Sieve Wait
Oct 01 12:16 | 0 0.1% | 6.301 1h40m | 611.66 82485 n.a.%
Oct 01 12:16 | 4 0.2% | 6.298 1h40m | 611.95 82485 n.a.%
Oct 01 12:16 | 9 0.3% | 6.304 1h40m | 611.37 82485 n.a.%

2) Message boards : News : BOINC Games sprint 07/15/2024 08:00 (UTC) - 07/18/2024 08:00 (UTC) (Message 10048)
Posted 18 Jul 2024 by zlodeck

What's the URL for the site?

https://www.boincgames.com/sprints.php

3) Message boards : Number crunching : 1 PETAFLOP!!!! (Message 9439)
Posted 1 Jan 2024 by zlodeck

It seems to be 3 orders more, no? :)

1 PetaFlop

4) Message boards : News : server outage / db crash again (Message 6405)
Posted 17 May 2020 by zlodeck

Hi reb, I see a nightmare was happened again!

Lost credits:
TF: 145000.
SR: 214540

I guess it's time to end the experiment with Win 10 as host system for project server VM. Win 10 as a server is poor solution at all. No good in future, we're waiting for permanent trouble, headache and many ribaldry words only.
Maybe it's worth consider migrating the host OS to Windows Server if You don't wanna roll back to Windows 7 (yeah, not all games can be run, but something is better than nothing). Or buying new (and not so powerful) machine for dedicated boinc server. Of course, both solutions will require additional money. But honestly, I don't see anything better.