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drummers-lowrise
1) Message boards : Number crunching : Great Internet Fermat Prime Search Challenge (Message 158373)
Posted 1 day ago by Profile vaughanProject donor
Good luck everyone - this challenge will test the hardware!
2) Message boards : Number crunching : Sub-project "life" expectancy (Message 158071)
Posted 11 days ago by Profile vaughanProject donor
There may be a pause in Cullen and Woodall. We're running close to the end of those sieve files and will need to do more sieving before continuing.

Hey Michael,
Could this sieving be opened up for all of us?
Vaughan
3) Message boards : Number crunching : Badges III (Message 157791)
Posted 27 days ago by Profile vaughanProject donor


and



Thanks to the challenge.

Good effort Penguin!
4) Message boards : Sieving : Automated sieving (Message 157492)
Posted 48 days ago by Profile vaughanProject donor
Yes; could the existing PPS Sieve be adapted?
5) Message boards : Number crunching : Badges III (Message 157419)
Posted 53 days ago by Profile vaughanProject donor
Good effort Nick.
6) Message boards : Number crunching : Electricity Prices (Message 157402)
Posted 55 days ago by Profile vaughanProject donor
Mine is over AUD7,000 a quarter but with the "pay on time" discount it comes down to around AUD5,000.

Yep $20k a year to support this hobby in electricity. But then I guess some of the power is for lighting and heating / cooling and other usage.

I'd be bored as anything if I didn't have the computers to look after.
7) Message boards : Problems and Help : All my GCW tasks are failing on DO droplets (Message 156972)
Posted 86 days ago by Profile vaughanProject donor
Yeah, I think turning on virtual memory may solve the problem. Some LLR2 tasks, including GCW, use a bunch of memory for storing the data for the files sent back to the server. This may exceed 1 GB, and we have seen this problem ourselves. The solution is to enable virtual memory.

Add this to your startup script for the droplets. You can also run it manually right now on your existing droplets. I suspect it will fix the problem.

# enable swap file for PrimeGrid GCW/SR5 fallocate -l 5G /swapfile chmod 600 /swapfile mkswap /swapfile swapon /swapfile # make it permanent in case of reboot sed -i '$ a\/swapfile swap swap defaults 0 0' /etc/fstab


It's a simple fix and it doesn't affect performance. This memory is written once and read once, so it's not thrashing the swap file.


Could Rytis incorporate this in the TSC startup process?
8) Message boards : Number crunching : Badges III (Message 156960)
Posted 87 days ago by Profile vaughanProject donor
Thanks everyone for the congrats messages.

Waiting for the WW challenge now.
9) Message boards : Number crunching : Badges III (Message 156948)
Posted 88 days ago by Profile vaughanProject donor


Target achieved.
10) Message boards : Number crunching : Badges III (Message 156815)
Posted 102 days ago by Profile vaughanProject donor

1 Billion for GFN - Double amethyst finally conquered.

Just leaves ESP-LLR to get to 100M now.


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