Posts by [AF>Amis des Lapins] Jean-Luc

1) Message boards : Getting started : the hello thread :) (Message 1433)
Posted 27 Aug 2020 by Profile [AF>Amis des Lapins] Jean-Luc
Post:
Hello from Mulhouse, France !
2) Message boards : News : The search up to 10^20 (Message 980)
Posted 17 Nov 2018 by Profile [AF>Amis des Lapins] Jean-Luc
Post:
I haven't decided yet. The search up to 10^20 will take more than 4 years at current speed, so 10^21 will take more than 40 years which is just too much. So it all depends on how many volunteers will be running the project in 4 years from now.


The search up to 10^21 will take much less than 40 years, since GPUs are always faster !
Probably between 8 and 10 years... taking into account Moore's law.

And now, have you decided ?
3) Message boards : Number crunching : GPU version (Message 191)
Posted 23 Feb 2017 by Profile [AF>Amis des Lapins] Jean-Luc
Post:
On my ATI R9 2960X : runtime between 109 seconds and 1266 seconds for a task.
On my GTX 680 : runtime between 383 seconds and 2116 seconds for a task.

This is normal. All WUs were normalized for CPU version, not for GPU. Some WUs get a huge speed-up when running on GPU, some don't. It depends on how well a work unit can be parallelized.


Thank you for your answer !
And sorry, my GPU is R9 290X and not R9 2960X.
4) Message boards : Number crunching : GPU version (Message 186)
Posted 23 Feb 2017 by Profile [AF>Amis des Lapins] Jean-Luc
Post:
Sorry for my bad english.

Not all good here. I don't know why but my calculation times for my tasks are all different.

On my ATI R9 2960X : runtime between 109 seconds and 1266 seconds for a task.
On my GTX 680 : runtime between 383 seconds and 2116 seconds for a task.

What should I do to always have the shortest time for the tasks ?

Win 7 x64 and ATI and NVidia in the same computer.



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