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Old 2010-04-23, 21:05   #143
Apr 2010

33 Posts

Originally Posted by frmky View Post
Our system has a quad GPU setup (Tesla S1070 actually), which is connected as two GPUs per PCIe 1.1 x16 slot. Running it on all 4 GPUs simultaneously, one binary doing one test on each GPU, doesn't slow it at all.
Hi, here is what I want to do. I'm currently building a system to do first time LL tests in search of a prime. The specs are:

Intel I5 750 2.66Ghz overclocked to 3.6Ghz
2GB 1333Mhz DDR3 RAM

If MacLucasFFTW can run on the GPU and use only 5% on the CPU then I would like to purchase something like a GTX 295 which is a Dual GPU card and run two instances of MacLucasFFTW on one CPU core and have each instance run on one GPU.

At the same time run 4 workers of mprime.

What I really want to know is how can I run MacLucasFFTW and give it an exponent to first time LL test which I can manually assign myself from the mprime website? Does this program support something like the worktodo.txt file in mprime to assign an exponent to test?

How do I make MacLucasFFTW create checkpoint file regularly like mprime in case my system restarts due to power loss?

If MacLucasFFTW finds a prime what would the result look like? Would it place the result in a text file so I could upload it to the mprime website?

Have you guys, msft and frmky, checked the power usage of your system? How many watts is it pulling now?

Does MacLucasFFTW support SLI?

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