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Number crunching :
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Author | Message |
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Send message Joined: 20 Mar 08 Posts: 46 Credit: 69,382,802 RAC: 0 |
Milkyway data as of 5/2/2010. Total GPUs: 30,321 Total Active GPUs: 12,402 Total Active Double Precision GPUs: 6,688 Total Hosts: 115,759 Total Active Hosts: 29,582 Active Hosts Percent: 25 Total CPUs: 294,156 Total Active CPUs: 82,899 Total GPU teraFlops: 22,007.63 Total Active GPU teraFlops: 10,175.51 Total Active Double Precision GPU teraFlops: 8,359.40 Total CPU teraFlops: 661.28 Total Active CPU teraFlops: 195.96 Total CPU teraIOps: 1,640.68 Total Active CPU teraIOps: 495.77 Note: Active means a workunit was returned within the last 7 days. |
Send message Joined: 29 Nov 07 Posts: 39 Credit: 74,300,629 RAC: 0 |
I'm somewhat confused in so far as I thought this project required a double precision gpu. If that is the case how come there are 12,402 active gpus' and only 6,688 double precision ones? |
Send message Joined: 12 Nov 07 Posts: 2425 Credit: 524,164 RAC: 0 |
I'm somewhat confused in so far as I thought this project required a double precision gpu. If that is the case how come there are 12,402 active gpus' and only 6,688 double precision ones? It is counting non double cards, what is in the systems. What I find odd is this: Total GPU teraFlops: 22,007.63 Since only DP cards can be used that means single precision counts for more than half of the work being done on gpus. So how much of that is being done with altered apps that are turning in invalid work? Doesn't expecting the unexpected make the unexpected the expected? If it makes sense, DON'T do it. |
Send message Joined: 11 Nov 07 Posts: 232 Credit: 178,229,009 RAC: 0 |
And then you have this information that states that all of BOINC have a combined 'Average floating point operations per second' of 5,164.650 TeraFLOPS. This make me feel like I have join Confusion@home ;) |
Send message Joined: 16 Feb 09 Posts: 109 Credit: 11,089,510 RAC: 0 |
"There are three kinds of lies: lies, damned lies and statistics." - Mark Twain :) |
Send message Joined: 12 Apr 08 Posts: 621 Credit: 161,934,067 RAC: 0 |
And then you have this information that states that all of BOINC have a combined 'Average floating point operations per second' of 5,164.650 TeraFLOPS. Part of the confusion comes from the different ways used to calculate the numbers ... |
Send message Joined: 24 Dec 07 Posts: 1947 Credit: 240,884,648 RAC: 0 |
Could it be that those SP GPU's are not crunching MW but their associated CPU's are and it's just bug in the info gathering? |
Send message Joined: 11 Nov 07 Posts: 232 Credit: 178,229,009 RAC: 0 |
And then you have this information that states that all of BOINC have a combined 'Average floating point operations per second' of 5,164.650 TeraFLOPS. So Slicker's numbers can be regarded as peak values? |
Send message Joined: 29 Nov 07 Posts: 39 Credit: 74,300,629 RAC: 0 |
Or perhaps, as it was Slicker that posted it, the data is for collatz and it is mislabeled and posted in the wrong forum. I know I'm clutching at straws now, but the mystery remains....... |
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