-----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Bill Hart Sent: Thursday, March 15, 2012 4:52 PM To: [email protected] Subject: Re: [mpir-devel]
I was looking at table 2 where the scale is multiplications per second, i.e. higher is better. But I might be misreading their data. I'm not sure if it is fair to compare a single CPU core with all cores of a GPU. That might depend on the application. I wonder as well whether dedicated parallel code for the CPU might do better. >> They do perform this test. For instance, article page 374 Size in Core 2 Core i7 GTX 295 GTX 295 GTX 480 K bits Q6600 870 Old Code New Code New Code ---------------- --------- ---------- ----------- ------------- ------------- 16320 x 16320 12.81 17.01 2.59 35.92 103.45 Shows for 4 threads on Core i7, 16320 bit multiplication performs 17 multiplications per second on Corei7 and 103 multiplications per second on GTX 480 card. That is where I came up with the figure of "6 times faster" in my original email. Of course, at this point, it is nothing but angels dancing on pinheads for the MPIR project because we do not know for sure how the figures would translate to a different system. << -- You received this message because you are subscribed to the Google Groups "mpir-devel" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/mpir-devel?hl=en.
