Quad-core in native Ubuntu.

  • Thread starter Thread starter Cob
  • Start date Start date

Cob

Cob

Cob

Soldato
Joined
30 Jul 2006
Posts
18,488
Location
Antrim town
Running two virtual machines in Windows, each with two SMP clients, gets me a maximum of around 3,500 ppd, usually a lot less due to pesky 1385 pointers.

And because the nice Scottish bloke at Crucial told me today that I could just return the single faulty stick from each pair of my borked memory (since all four sticks were from the exact same batch and the two good sticks should be fine together), I've decided to carry on using native Ubuntu for a bit to see what sort of output is possible with four SMP clients.

Currently running two 3029 and 3050 WU's, each being worth 1440 points-

CPU1 (3029) -

[17:38:13] Completed 7900000 out of 10000000 steps (79 percent)
[17:38:13] Extra SSE boost OK.
[17:55:11] Writing local files
[17:55:11] Completed 8000000 out of 10000000 steps (80 percent)
[18:12:46] Writing local files
[18:12:46] Completed 8100000 out of 10000000 steps (81 percent)
[18:30:19] Writing local files
[18:30:19] Completed 8200000 out of 10000000 steps (82 percent)

CPU2 (3029) -

[17:38:27] Completed 8600000 out of 10000000 steps (86 percent)
[17:38:27] Extra SSE boost OK.
[17:55:53] Writing local files
[17:55:53] Completed 8700000 out of 10000000 steps (87 percent)
[18:13:25] Writing local files
[18:13:25] Completed 8800000 out of 10000000 steps (88 percent)
[18:30:56] Writing local files
[18:30:56] Completed 8900000 out of 10000000 steps (89 percent)

CPU3 (3050) -

[17:38:37] Completed 8300000 out of 10000000 steps (83 percent)
[17:38:37] Extra SSE boost OK.
[17:56:27] Writing local files
[17:56:27] Completed 8400000 out of 10000000 steps (84 percent)
[18:14:19] Writing local files
[18:14:19] Completed 8500000 out of 10000000 steps (85 percent)
[18:32:08] Writing local files
[18:32:08] Completed 8600000 out of 10000000 steps (86 percent)

CPU4 (3050) -

[17:38:56] Completed 100000 out of 10000000 steps (1 percent)
[17:38:56] Extra SSE boost OK.
[17:56:51] Writing local files
[17:56:51] Completed 200000 out of 10000000 steps (2 percent)
[18:14:45] Writing local files
[18:14:45] Completed 300000 out of 10000000 steps (3 percent)
[18:32:38] Writing local files
[18:32:38] Completed 400000 out of 10000000 steps (4 percent)

So the 3029's are averaging about 17.5mins per frame, and the 3050's are averaging about 18 mins per frame.

If my calculations are correct, I'm averaging ~1185ppd per 3029, and ~1150ppd per 3050. So we'll say an average of 1170ppd per client.

Making a total of ~4680ppd . That's a gain of almost 1200ppd over what I've been able to achieve running in VMware :eek:
 
Nice gains.

I tried native Ubuntu on my C2D and found it reduced frame times of 1 client by around 1 minute, a nice gain but yours is very nice.
 
4.6K :eek:

Can't wait for next month!

As an aside, can you tell me what the PPD is like for one client running on all 4 cores? Since that is what the client is designed for.
 
Give me a few minutes and I'll see.

The 4 threads are using 14%, 14%, 15% and 23% each of the CPU respectively, so about ~65% in total. The four clients max it out. I'll see what two clients use in a moment.

*edit*

[19:40:33] Completed 8500000 out of 10000000 steps (85 percent)
[19:40:33] Extra SSE boost OK.
[19:47:03] Writing local files
[19:47:03] Completed 8600000 out of 10000000 steps (86 percent)

So 6.5mins per frame, makes about 3190ppd for one client on a quad.


*edit*

Two clients are using 72-75% of the CPU.

[19:51:27] Completed 9200000 out of 10000000 steps (92 percent)
[19:51:27] Extra SSE boost OK.
[20:02:08] Writing local files
[20:02:08] Completed 9300000 out of 10000000 steps (93 percent)

So just over 10.5mins per frame, makes about 3950ppd for two clients.


Three clients are using 83% of the total CPU.

[20:03:44] Completed 8900000 out of 10000000 steps (89 percent)
[20:03:44] Extra SSE boost OK.
[20:19:48] Writing local files
[20:19:48] Completed 9000000 out of 10000000 steps (90 percent)

So 16mins per frame, making 3890ppd for three clients. There's something not right there :confused:
 
Last edited:
Is windows smp that bad then? :confused:

According to fahmon im only getting 1990ppd? On a 2652

quad at 3ghz here, if this is what im going to be getting i think i will move back over to vm. :(

*edit* its gone up to 2160ppd overnight

slightly better but still far away from Lsmp :(
 
Last edited:
You must log in or register to reply here.
Back
Top Bottom