Re: [Beowulf] Can one Infiniband net support MPI and a parallel filesystem?

2008-09-01 Thread Gerry Creager
Craig Tierney wrote: Joe Landman wrote: Craig Tierney wrote: Chris Samuel wrote: - "I Kozin (Igor)" <[EMAIL PROTECTED]> wrote: Generally speaking, MPI programs will not be fetching/writing data from/to storage at the same time they are doing MPI calls so there tends to not be very much c

Re: [Beowulf] gpgpu

2008-09-01 Thread Li, Bo
Gaming card is not supposed to have the same stability at the default frequency, but with the 10 times price difference, it is still a very good choice. Two card system cost us only $1,000 and provides about 1.6TFlops SP capability. Regards, Li, Bo - Original Message - From: "Matt Lawre

Re: [Beowulf] gpgpu

2008-09-01 Thread Li, Bo
Hello, Not at all. I lowered the frequency for stability, actually it works fine at the default frequency, but I don't want to take any risks. Regards, Li, Bo - Original Message - From: "Matt Lawrence" <[EMAIL PROTECTED]> To: "who's afraid of" Sent: Tuesday, September 02, 2008 9:44 AM Su

Re: [Beowulf] gpgpu

2008-09-01 Thread Matt Lawrence
On Tue, 2 Sep 2008, Li, Bo wrote: It seemed that you had got a very good example for GPGPU. As I said before, it's not the time for GPGPU to do the DP calculation at the moment. If you can bear SP computation, you will find more about it. NVidia just sent me some special offer about their Tesl

Re: [Beowulf] gpgpu

2008-09-01 Thread Li, Bo
Hello, It seemed that you had got a very good example for GPGPU. As I said before, it's not the time for GPGPU to do the DP calculation at the moment. If you can bear SP computation, you will find more about it. NVidia just sent me some special offer about their Tesla platforms, which said that

Re: [Beowulf] gpgpu

2008-09-01 Thread Mikhail Kuzminsky
I performed some simplest estimation for possible performance improvements using "dgemm on FirerStream 9250". It's extremally good for GPGPU example. The source data for 9250: peak DP performance 200 GFLOPS, GDDR3 RAM 1 Gbyte. 1 Gbyte can hold 3 DP(64 bit) matrixes (n x n) for n=6000 - they