Linpack Challenge

[lopri]

That's what I tried prior to finding the new binaries. I figured something was wrong and there's gotta be a new version out there. I'm pretty sure that was before I updated w/ SP1. (What does SP1 do anyway? AVX support?)

Meanwhile here is another run on my main rig. Only 10 loops since Linpack is becoming a pain with 16GB.

CPU: Phenom II 1090T
Core Frequency: 4000 MHz (1.40V)
NB/Uncore Frequency: 3000 MHz (1.25V)
Memory Frequency: DDR3-1666 (8-8-8-24)
Peak Performance: 79.40 GFlops

 

[996GT2]

AVX

How did you run it with AVX? I have Win 7 SP1 installed but my scores didn't change at all.

 

[Kenmitch]

How did you run it with AVX? I have Win 7 SP1 installed but my scores didn't change at all.

4.6ghz

I don't know how others get it to work? What I did was replaced the linpack_xeon64 with the linpack64 from Intel Burn Test 2.51 and renamed it to linpack_xeon64 just in case it wouldn't work the other way.

 

[996GT2]

4.6ghz

I don't know how others get it to work? What I did was replaced the linpack_xeon64 with the linpack64 from Intel Burn Test 2.51 and renamed it to linpack_xeon64 just in case it wouldn't work the other way.

Ahh, I'll give it a shot. Thanks!

Did running LinX with AVX enabled change your CPU's load temps at all?

 

[996GT2]

Holy crap, LinX AVX produces some incredible temperatures...about 10-12C higher than my maximum temps during Prime95.

 

[Idontcare]

Holy crap, LinX AVX produces some incredible temperatures...about 10-12C higher than my maximum temps during Prime95.

Yeah, IIRC the test was developed intentionally for the purpose of generating some kind of worst-case power-virus loads that no actual applications ever approach.

Having high temps is nice for testing corner cases, but it only test the operational stability of a handful of instructions.

What you really want to ensure is that all 800+ instructions are capable of operating error-free (stable) at those temperatures and voltages.

Unfortunately those apps aren't free like Prime95 and LinX.

 

[Kenmitch]

Ahh, I'll give it a shot. Thanks! Did running LinX with AVX enabled change your CPU's load temps at all?

Guess you already found out the answer

After I swapped the file and renamed it I did a google search for LinX avx and found a version that had avx support already....Didn't make a diff on scores or temps tho.

 

[FordGT]

I just finished building my new 2600K system and decided to do a comparison between my Q6600. I used Intel Burn Test because it has more up to date Linpack libraries.


My Q6600 peaked at 40Gflops and my new 2600K peaked at 90Gflops with HT off. I assume this is mostly because of AVX and other newer instructions but that is definitely a nice jump!

 

[lopri]

Adding my latest toy in the database.

CPU: Phenom II X6 1045T
Core Frequency: 4050 MHz (1.40V)
NB/Uncore Frequency: 3000 MHz
Memory Frequency: DDR3-1600 (7-8-7-21)
Peak Performance: 80.06 GFlops

Would like to see some SB-E or Ivy-E results. Let the quad-channel memory rock!

 

[ShintaiDK]

Stock settings, memory at CL10. only used 10GB memory tho and 2 runs. 97Gflops.

 

[lopri]

Stock settings, memory at CL10. only used 10GB memory tho and 2 runs. 97Gflops.

3.40 GHz? Or does it turbo to.. ? (looking 3570K in your sig)

 

[ShintaiDK]

3.40 GHz? Or does it turbo to.. ? (looking 3570K in your sig)

Yes, 3.4Ghz stock. It turbos to 3.6Ghz and stays there all the time it seems.

 

[lopri]

BTW that's really really a nice rig you've got there. Lots of computing power in such a small form factor. I wish I could do the same but I just have too many HDDs.

 

[ShintaiDK]

BTW that's really really a nice rig you've got there. Lots of computing power in such a small form factor. I wish I could do the same but I just have too many HDDs.

Ye, I will never never go bigger than MiniITX again. The SG08B supports 1 3½" and 2 2½". And besides that you got everything you need.

Old box was a P180 mini. And its just a huge clumsy case now

 

[ShintaiDK]

Little tweaking, still stock CPU and memory. Passed 100Gflops and turbo still same and stable at 3.6Ghz.

 

[Kenmitch]

Little tweaking, still stock CPU and memory. Passed 100Gflops and turbo still same and stable at 3.6Ghz.

What kinda temps did you get during this?

 

[ShintaiDK]

75-80C give or take. Or 25-30C from tjmax.

Stock cooler.

 

[lopri]

Any more contribution from anyone? We haven't seen results from:

- SB-E (SSE2 or AVX)
- Bulldozer (SSE2 or AVX)

 

[Abwx]

With all this orgy of Gflops wouldnt it be insightfull to look
at the other side .?...

I just tested two old LT that are hanging by there , a P4 1.6
and an AXP 1800+ , both are barely doing one Gflops while
a third one with a DC T4400 do 7.5 Gflps.

Quite far from the bolids above...

 

[lopri]

With all this orgy of Gflops wouldnt it be insightfull to look
at the other side .?...

I just tested two old LT that are hanging by there , a P4 1.6
and an AXP 1800+ , both are barely doing one Gflops while
a third one with a DC T4400 do 7.5 Gflps.

Quite far from the bolids above...

Oh I'm sorry. It's also wonderful to see how older CPUs perform. Mobile or even non-x86 systems are of interest of many, I'm pretty sure. Go ahead and post the results.

 

[Shmee]

on my 980x, better to have HT on our off?

 

[lopri]

on my 980x, better to have HT on our off?

Off, of course.

 

[Shmee]

thanks, that's what I heard. Just wanted to make sure things haven't changed, as I know they had linx updates since then.

 

[lopri]

I've never got a chance to run my 2500K using SSE2 (SP1 already installed), but according to this person,

The potential of AVX is huge. (70~80% real gain, 100% theoretical gain?)

http://www.xtremesystems.org/forums...rch-Question&p=4800356&viewfull=1#post4800356

 

[Shmee]

here is a quick run with my 980x @ 4GHz. HT off of course