Author Topic: [Split] PowerSpectrum Unit Test (Read 138428 times)

Miep · « **Reply #270 on:** 24 Dec 2010, 04:14:26 pm »

nr9

Device: Quadro FX 570M, 950 MHz clock, 242 MB memory.
Compute capability 1.1
Compiled with CUDA 3020.

FAILURE in c:/[Projects]/LunaticsUnited/Tools/Tests/PowerSpectrum/main.cpp, line 254

ouch :)

ok stopping boinc helps ::) result tomorrow ok result now

Device: Quadro FX 570M, 950 MHz clock, 242 MB memory.
Compute capability 1.1
Compiled with CUDA 3020.
PowerSpectrum+summax Unit test #9 (FFT pipeline)
Christmas 2010 edition.
Stock:
FFT+PS+SM( 8) 1.8 GFlops 3.2 GB/s ulps(fft 1.3,ps 4775.9) [OK]
FFT+PS+SM( 16) 2.9 GFlops 4.0 GB/s ulps(fft 1.6,ps 4817.4) [OK]
FFT+PS+SM( 32) 2.7 GFlops 3.0 GB/s ulps(fft 1.6,ps 4628.1) [OK]
FFT+PS+SM( 64) 5.3 GFlops 5.0 GB/s ulps(fft 1.6,ps 4557.6) [OK]
FFT+PS+SM( 128) 7.9 GFlops 6.5 GB/s ulps(fft 2.0,ps 4942.0) [OK]
FFT+PS+SM( 256) 11.0 GFlops 8.0 GB/s ulps(fft 2.0,ps 4967.8) [OK]
FFT+PS+SM( 512) 13.3 GFlops 8.7 GB/s ulps(fft 2.1,ps 5128.1) [OK]
FFT+PS+SM( 1024) 13.1 GFlops 7.8 GB/s ulps(fft 2.5,ps 5552.5) [OK]
FFT+PS+SM( 2048) 13.2 GFlops 7.2 GB/s ulps(fft 2.7,ps 5770.3) [OK]
FFT+PS+SM( 4096) 12.3 GFlops 6.1 GB/s ulps(fft 2.4,ps 5313.7) [OK]
FFT+PS+SM( 8192) 11.5 GFlops 5.3 GB/s ulps(fft 2.8,ps 5881.1) [OK]
FFT+PS+SM( 16384) 10.7 GFlops 4.6 GB/s ulps(fft 3.3,ps 6399.1) [OK]
FFT+PS+SM( 32768) 12.2 GFlops 5.0 GB/s ulps(fft 3.3,ps 6380.1) [OK]
FFT+PS+SM( 65536) 12.2 GFlops 4.7 GB/s ulps(fft 3.4,ps 6534.8) [OK]
FFT+PS+SM(131072) 12.5 GFlops 4.5 GB/s ulps(fft 3.6,ps 6694.2) [OK]

Opt1 (worst case): 64 thrds/block
FFT+PS+SM( 8) 3.7 GFlops 6.6 GB/s ulps(fft 1.3,ps 4637.5) [OK]
FFT+PS+SM( 16) 4.7 GFlops 6.4 GB/s ulps(fft 1.6,ps 4589.2) [OK]
FFT+PS+SM( 32) 5.6 GFlops 6.3 GB/s ulps(fft 1.6,ps 4535.6) [OK]
FFT+PS+SM( 64) 7.9 GFlops 7.5 GB/s ulps(fft 1.6,ps 4426.7) [OK]
FFT+PS+SM( 128) 9.4 GFlops 7.7 GB/s ulps(fft 2.0,ps 4818.1) [OK]
FFT+PS+SM( 256) 12.5 GFlops 9.1 GB/s ulps(fft 2.0,ps 4831.0) [OK]
FFT+PS+SM( 512) 15.3 GFlops 10.0 GB/s ulps(fft 2.1,ps 4987.2) [OK]
FFT+PS+SM( 1024) 15.0 GFlops 8.9 GB/s ulps(fft 2.5,ps 5438.0) [OK]
FFT+PS+SM( 2048) 14.6 GFlops 7.9 GB/s ulps(fft 2.7,ps 5674.7) [OK]
FFT+PS+SM( 4096) 14.1 GFlops 7.0 GB/s ulps(fft 2.4,ps 5202.4) [OK]
FFT+PS+SM( 8192) 12.8 GFlops 6.0 GB/s ulps(fft 2.8,ps 5765.4) [OK]
FFT+PS+SM( 16384) 11.6 GFlops 5.0 GB/s ulps(fft 3.3,ps 6291.8) [OK]
FFT+PS+SM( 32768) 13.1 GFlops 5.3 GB/s ulps(fft 3.3,ps 6275.5) [OK]
FFT+PS+SM( 65536) 14.1 GFlops 5.4 GB/s ulps(fft 3.4,ps 6429.1) [OK]
FFT+PS+SM(131072) 14.0 GFlops 5.0 GB/s ulps(fft 3.6,ps 6590.4) [OK]

sorry no time for avarages atm

Jason G · « **Reply #271 on:** 25 Dec 2010, 01:35:50 am »

Thanks Heinz, perrjay & Carola,

Nice to see the stubborn chips(that Quadro & ION) edging forward a bit now.

@perryjay: ~3x for 9500GT in some sizes? Don't know why that is completely but I like it

Jason

PatrickV2 · « **Reply #272 on:** 25 Dec 2010, 05:21:25 am »

Hi there,

Ran test #9 on my Q6600/8GB/8800GTX, under both WinXP-32 as well as Win7-64.

First, WinXP-32:

Code: [Select]

Device: GeForce 8800 GTX, 1350 MHz clock, 768 MB memory.
Compute capability 1.0
Compiled with CUDA 3020.
		PowerSpectrum+summax Unit test #9 (FFT pipeline)
				Christmas 2010 edition.
Stock: 
 FFT+PS+SM(     8)    9.3 GFlops   16.4 GB/s  ulps(fft  1.3,ps 4775.9) [OK]
 FFT+PS+SM(    16)   13.6 GFlops   18.5 GB/s  ulps(fft  1.6,ps 4817.4) [OK]
 FFT+PS+SM(    32)   16.0 GFlops   17.8 GB/s  ulps(fft  1.6,ps 4628.1) [OK]
 FFT+PS+SM(    64)   28.3 GFlops   26.8 GB/s  ulps(fft  1.6,ps 4557.6) [OK]
 FFT+PS+SM(   128)   44.4 GFlops   36.5 GB/s  ulps(fft  2.0,ps 4942.0) [OK]
 FFT+PS+SM(   256)   59.2 GFlops   43.1 GB/s  ulps(fft  2.0,ps 4967.8) [OK]
 FFT+PS+SM(   512)   72.6 GFlops   47.4 GB/s  ulps(fft  2.1,ps 5128.1) [OK]
 FFT+PS+SM(  1024)   71.7 GFlops   42.5 GB/s  ulps(fft  2.5,ps 5552.5) [OK]
 FFT+PS+SM(  2048)   72.1 GFlops   39.1 GB/s  ulps(fft  2.7,ps 5770.3) [OK]
 FFT+PS+SM(  4096)   66.5 GFlops   33.3 GB/s  ulps(fft  2.4,ps 5313.7) [OK]
 FFT+PS+SM(  8192)   63.3 GFlops   29.4 GB/s  ulps(fft  2.8,ps 5881.1) [OK]
 FFT+PS+SM( 16384)   58.6 GFlops   25.3 GB/s  ulps(fft  3.3,ps 6399.1) [OK]
 FFT+PS+SM( 32768)   62.9 GFlops   25.5 GB/s  ulps(fft  3.3,ps 6380.1) [OK]
 FFT+PS+SM( 65536)   67.2 GFlops   25.6 GB/s  ulps(fft  3.4,ps 6534.8) [OK]
 FFT+PS+SM(131072)   66.0 GFlops   23.7 GB/s  ulps(fft  3.6,ps 6694.2) [OK]


Opt1 (worst case): 64 thrds/block
 FFT+PS+SM(     8)   14.3 GFlops   25.2 GB/s  ulps(fft  1.3,ps 4637.5) [OK]
 FFT+PS+SM(    16)   21.2 GFlops   28.9 GB/s  ulps(fft  1.6,ps 4589.2) [OK]
 FFT+PS+SM(    32)   27.5 GFlops   30.7 GB/s  ulps(fft  1.6,ps 4535.6) [OK]
 FFT+PS+SM(    64)   39.1 GFlops   37.0 GB/s  ulps(fft  1.6,ps 4426.7) [OK]
 FFT+PS+SM(   128)   47.4 GFlops   39.0 GB/s  ulps(fft  2.0,ps 4818.1) [OK]
 FFT+PS+SM(   256)   62.5 GFlops   45.5 GB/s  ulps(fft  2.0,ps 4831.0) [OK]
 FFT+PS+SM(   512)   76.0 GFlops   49.7 GB/s  ulps(fft  2.1,ps 4987.2) [OK]
 FFT+PS+SM(  1024)   74.1 GFlops   43.9 GB/s  ulps(fft  2.5,ps 5438.0) [OK]
 FFT+PS+SM(  2048)   74.2 GFlops   40.3 GB/s  ulps(fft  2.7,ps 5674.7) [OK]
 FFT+PS+SM(  4096)   67.3 GFlops   33.7 GB/s  ulps(fft  2.4,ps 5202.4) [OK]
 FFT+PS+SM(  8192)   64.7 GFlops   30.0 GB/s  ulps(fft  2.8,ps 5765.4) [OK]
 FFT+PS+SM( 16384)   59.8 GFlops   25.9 GB/s  ulps(fft  3.3,ps 6291.8) [OK]
 FFT+PS+SM( 32768)   64.3 GFlops   26.0 GB/s  ulps(fft  3.3,ps 6275.5) [OK]
 FFT+PS+SM( 65536)   68.6 GFlops   26.1 GB/s  ulps(fft  3.4,ps 6429.1) [OK]
 FFT+PS+SM(131072)   67.5 GFlops   24.3 GB/s  ulps(fft  3.6,ps 6590.4) [OK]

Second, Win7-64:

Code: [Select]

Device: GeForce 8800 GTX, 1350 MHz clock, 731 MB memory.
Compute capability 1.0
Compiled with CUDA 3020.
		PowerSpectrum+summax Unit test #9 (FFT pipeline)
				Christmas 2010 edition.
Stock: 
 FFT+PS+SM(     8)    8.4 GFlops   14.9 GB/s  ulps(fft  1.3,ps 4775.9) [OK]
 FFT+PS+SM(    16)   12.1 GFlops   16.6 GB/s  ulps(fft  1.6,ps 4817.4) [OK]
 FFT+PS+SM(    32)   14.6 GFlops   16.3 GB/s  ulps(fft  1.6,ps 4628.1) [OK]
 FFT+PS+SM(    64)   25.9 GFlops   24.5 GB/s  ulps(fft  1.6,ps 4557.6) [OK]
 FFT+PS+SM(   128)   38.6 GFlops   31.8 GB/s  ulps(fft  2.0,ps 4942.0) [OK]
 FFT+PS+SM(   256)   50.3 GFlops   36.6 GB/s  ulps(fft  2.0,ps 4967.8) [OK]
 FFT+PS+SM(   512)   61.2 GFlops   40.0 GB/s  ulps(fft  2.1,ps 5128.1) [OK]
 FFT+PS+SM(  1024)   61.6 GFlops   36.5 GB/s  ulps(fft  2.5,ps 5552.5) [OK]
 FFT+PS+SM(  2048)   62.3 GFlops   33.8 GB/s  ulps(fft  2.7,ps 5770.3) [OK]
 FFT+PS+SM(  4096)   57.5 GFlops   28.7 GB/s  ulps(fft  2.4,ps 5313.7) [OK]
 FFT+PS+SM(  8192)   56.1 GFlops   26.0 GB/s  ulps(fft  2.8,ps 5881.1) [OK]
 FFT+PS+SM( 16384)   52.4 GFlops   22.7 GB/s  ulps(fft  3.3,ps 6399.1) [OK]
 FFT+PS+SM( 32768)   55.5 GFlops   22.5 GB/s  ulps(fft  3.3,ps 6380.1) [OK]
 FFT+PS+SM( 65536)   59.2 GFlops   22.5 GB/s  ulps(fft  3.4,ps 6534.8) [OK]
 FFT+PS+SM(131072)   58.8 GFlops   21.1 GB/s  ulps(fft  3.6,ps 6694.2) [OK]


Opt1 (worst case): 64 thrds/block
 FFT+PS+SM(     8)   14.2 GFlops   25.0 GB/s  ulps(fft  1.3,ps 4637.5) [OK]
 FFT+PS+SM(    16)   21.0 GFlops   28.6 GB/s  ulps(fft  1.6,ps 4589.2) [OK]
 FFT+PS+SM(    32)   27.5 GFlops   30.7 GB/s  ulps(fft  1.6,ps 4535.6) [OK]
 FFT+PS+SM(    64)   39.2 GFlops   37.1 GB/s  ulps(fft  1.6,ps 4426.7) [OK]
 FFT+PS+SM(   128)   46.8 GFlops   38.5 GB/s  ulps(fft  2.0,ps 4818.1) [OK]
 FFT+PS+SM(   256)   61.1 GFlops   44.5 GB/s  ulps(fft  2.0,ps 4831.0) [OK]
 FFT+PS+SM(   512)   75.2 GFlops   49.2 GB/s  ulps(fft  2.1,ps 4987.2) [OK]
 FFT+PS+SM(  1024)   73.6 GFlops   43.6 GB/s  ulps(fft  2.5,ps 5438.0) [OK]
 FFT+PS+SM(  2048)   73.4 GFlops   39.8 GB/s  ulps(fft  2.7,ps 5674.7) [OK]
 FFT+PS+SM(  4096)   67.7 GFlops   33.9 GB/s  ulps(fft  2.4,ps 5202.4) [OK]
 FFT+PS+SM(  8192)   64.4 GFlops   29.8 GB/s  ulps(fft  2.8,ps 5765.4) [OK]
 FFT+PS+SM( 16384)   59.5 GFlops   25.7 GB/s  ulps(fft  3.3,ps 6291.8) [OK]
 FFT+PS+SM( 32768)   64.0 GFlops   25.9 GB/s  ulps(fft  3.3,ps 6275.5) [OK]
 FFT+PS+SM( 65536)   68.2 GFlops   26.0 GB/s  ulps(fft  3.4,ps 6429.1) [OK]
 FFT+PS+SM(131072)   67.1 GFlops   24.1 GB/s  ulps(fft  3.6,ps 6590.4) [OK]

Regards, Patrick.

Jason G · « **Reply #273 on:** 25 Dec 2010, 08:53:02 am »

Quote from: PatrickV2 on 25 Dec 2010, 05:21:25 am

Ran test #9 on my Q6600/8GB/8800GTX, under both WinXP-32 as well as Win7-64.

Excellent, not broken on the 8800. Last hurdle for that code area cleared & can move on

perryjay · « **Reply #274 on:** 25 Dec 2010, 11:14:03 am »

Carola just mentioned something I haven't been doing. I have been running the test without stopping BOINC. Should I run it with BOINC stopped?

Miep · « **Reply #275 on:** 25 Dec 2010, 12:56:38 pm »

It's not neccessary to completely stop Boinc, but at least the GPU should be snoozed.
Can't test GPU computing/memory transfers when you are crunching with it.
Else you will see reduced values on the test.

perryjay · « **Reply #276 on:** 25 Dec 2010, 01:05:33 pm »

Okay, let's see how much of a difference this makes....
Microsoft Windows [Version 6.1.7600]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.

C:\Users\perry>cd\test

C:\test>powerspectrumtest9.exe

Device: GeForce 9500 GT, 1848 MHz clock, 1006 MB memory.
Compute capability 1.1
Compiled with CUDA 3020.
PowerSpectrum+summax Unit test #9 (FFT pipeline)
Christmas 2010 edition.
Stock:
FFT+PS+SM(

3.0 GFlops 5.2 GB/s ulps(fft 1.3,ps 4775.9) [OK]
FFT+PS+SM( 16) 4.0 GFlops 5.5 GB/s ulps(fft 1.6,ps 4817.4) [OK]
FFT+PS+SM( 32) 4.4 GFlops 5.0 GB/s ulps(fft 1.6,ps 4628.1) [OK]
FFT+PS+SM( 64) 7.1 GFlops 6.7 GB/s ulps(fft 1.6,ps 4557.6) [OK]
FFT+PS+SM( 128) 9.8 GFlops 8.1 GB/s ulps(fft 2.0,ps 4942.0) [OK]
FFT+PS+SM( 256) 11.9 GFlops 8.6 GB/s ulps(fft 2.0,ps 4967.

[OK]
FFT+PS+SM( 512) 15.0 GFlops 9.8 GB/s ulps(fft 2.1,ps 5128.1) [OK]
FFT+PS+SM( 1024) 16.2 GFlops 9.6 GB/s ulps(fft 2.5,ps 5552.5) [OK]
FFT+PS+SM( 2048) 17.5 GFlops 9.5 GB/s ulps(fft 2.7,ps 5770.3) [OK]
FFT+PS+SM( 4096) 13.4 GFlops 6.7 GB/s ulps(fft 2.4,ps 5313.7) [OK]
FFT+PS+SM( 8192) 14.2 GFlops 6.6 GB/s ulps(fft 2.8,ps 5881.1) [OK]
FFT+PS+SM( 16384) 13.7 GFlops 5.9 GB/s ulps(fft 3.3,ps 6399.1) [OK]
FFT+PS+SM( 32768) 12.1 GFlops 4.9 GB/s ulps(fft 3.3,ps 6380.1) [OK]
FFT+PS+SM( 65536) 13.0 GFlops 5.0 GB/s ulps(fft 3.4,ps 6534.

[OK]
FFT+PS+SM(131072) 13.9 GFlops 5.0 GB/s ulps(fft 3.6,ps 6694.2) [OK]

Opt1 (worst case): 64 thrds/block
FFT+PS+SM(

4.1 GFlops 7.3 GB/s ulps(fft 1.3,ps 4637.5) [OK]
FFT+PS+SM( 16) 5.7 GFlops 7.7 GB/s ulps(fft 1.6,ps 4589.2) [OK]
FFT+PS+SM( 32) 7.0 GFlops 7.8 GB/s ulps(fft 1.6,ps 4535.6) [OK]
FFT+PS+SM( 64) 9.2 GFlops 8.7 GB/s ulps(fft 1.6,ps 4426.7) [OK]
FFT+PS+SM( 128) 10.5 GFlops 8.6 GB/s ulps(fft 2.0,ps 4818.1) [OK]
FFT+PS+SM( 256) 12.7 GFlops 9.2 GB/s ulps(fft 2.0,ps 4831.0) [OK]
FFT+PS+SM( 512) 16.0 GFlops 10.5 GB/s ulps(fft 2.1,ps 4987.2) [OK]
FFT+PS+SM( 1024) 17.3 GFlops 10.2 GB/s ulps(fft 2.5,ps 5438.0) [OK]
FFT+PS+SM( 2048) 18.5 GFlops 10.0 GB/s ulps(fft 2.7,ps 5674.7) [OK]
FFT+PS+SM( 4096) 13.7 GFlops 6.9 GB/s ulps(fft 2.4,ps 5202.4) [OK]
FFT+PS+SM( 8192) 14.9 GFlops 6.9 GB/s ulps(fft 2.8,ps 5765.4) [OK]
FFT+PS+SM( 16384) 15.4 GFlops 6.6 GB/s ulps(fft 3.3,ps 6291.

[OK]
FFT+PS+SM( 32768) 13.1 GFlops 5.3 GB/s ulps(fft 3.3,ps 6275.5) [OK]
FFT+PS+SM( 65536) 13.8 GFlops 5.3 GB/s ulps(fft 3.4,ps 6429.1) [OK]
FFT+PS+SM(131072) 14.5 GFlops 5.2 GB/s ulps(fft 3.6,ps 6590.4) [OK]

C:\test>

Jason G · « **Reply #277 on:** 25 Dec 2010, 01:12:13 pm »

Ahah! that explained the inflated speedup on the previous run

. In essence (some of) the optimisations (namely, asynchronous transfers) I'm trying out should be less susceptible to slowdowns under load than stock code (synchronous transfers)....

I wasn't looking to test/refine that aspect yet, but you managed to prove it already works... Thanks!

(Overlapped execution/transfers on Pre-Fermi, and concurrent kernels on Fermi next .... )

perryjay · « **Reply #278 on:** 25 Dec 2010, 03:39:09 pm »

Sorry bout that... hope I didn't mess you up too much. Glad it gave you some extra to think about.

Jason G · « **Reply #279 on:** 25 Dec 2010, 06:02:06 pm »

Quote from: perryjay on 25 Dec 2010, 03:39:09 pm

Sorry bout that... hope I didn't mess you up too much. Glad it gave you some extra to think about.

Not at all messed up, just had me wondering how 9500GT was managing to get 3x throughput at some sizes, and now we know it was under load

. That unexpected benefit does indeed give me some more things to consider for the next stage, and it looks like we might be able to push a bit harder than I thought.

perryjay · « **Reply #280 on:** 25 Dec 2010, 06:12:35 pm »

Hey guys, I done something right for a change!!!

Looking forward to the next test. This time I'll know to turn it off!

PatrickV2 · « **Reply #281 on:** 25 Dec 2010, 09:58:08 pm »

Quote from: Jason G on 25 Dec 2010, 08:53:02 am

Quote from: PatrickV2 on 25 Dec 2010, 05:21:25 am
Ran test #9 on my Q6600/8GB/8800GTX, under both WinXP-32 as well as Win7-64.

Excellent, not broken on the 8800. Last hurdle for that code area cleared & can move on

Wonderful to hear that. As always, looking forward to the next bit of execution-magic.

Regards, Patrick.

Jason G · « **Reply #282 on:** 26 Dec 2010, 04:36:06 am »

Will take me some time to cook up the next test, working out this streaming stuff.
Mixed results with kernel streaming so far, appearing to benefit my smaller highly optimised kernels more over the stock-ish larger sizes (don't know why yet, and dividing further into additional streams seems to slow it down again ... tricky! ):

As with test #9 (single stream)

Quote

Opt1 (worst case): 256 thrds/block, 1 x 1048576 element streams
FFT+PS+SM( 8) 19.2 GFlops 33.8 GB/s ulps(fft 1.2,ps 4324.2) [OK]
FFT+PS+SM( 16) 36.8 GFlops 50.3 GB/s ulps(fft 1.6,ps 4326.2) [OK]
FFT+PS+SM( 32) 60.7 GFlops 67.8 GB/s ulps(fft 1.3,ps 4003.6) [OK]
FFT+PS+SM( 64) 86.2 GFlops 81.6 GB/s ulps(fft 1.5,ps 4270.2) [OK]
FFT+PS+SM( 128) 92.5 GFlops 76.1 GB/s ulps(fft 1.7,ps 4347.9) [OK]
FFT+PS+SM( 256) 135.0 GFlops 98.3 GB/s ulps(fft 1.7,ps 4261.8) [OK]
FFT+PS+SM( 512) 172.0 GFlops 112.4 GB/s ulps(fft 1.8,ps 4327.4) [OK]
FFT+PS+SM( 1024) 214.7 GFlops 127.3 GB/s ulps(fft 2.1,ps 4727.6) [OK]
FFT+PS+SM( 2048) 225.9 GFlops 122.6 GB/s ulps(fft 2.2,ps 4921.2) [OK]
FFT+PS+SM( 4096) 232.3 GFlops 116.2 GB/s ulps(fft 2.2,ps 4764.3) [OK]
FFT+PS+SM( 8192) 226.0 GFlops 104.8 GB/s ulps(fft 2.6,ps 5278.8) [OK]
FFT+PS+SM( 16384) 221.5 GFlops 95.8 GB/s ulps(fft 2.6,ps 5357.5) [OK]
FFT+PS+SM( 32768) 213.1 GFlops 86.3 GB/s ulps(fft 2.3,ps 4992.8) [OK]
FFT+PS+SM( 65536) 210.5 GFlops 80.2 GB/s ulps(fft 2.0,ps 4604.3) [OK]
FFT+PS+SM(131072) 202.6 GFlops 72.8 GB/s ulps(fft 2.7,ps 5392.8) [OK]

2x streams:

Quote

Opt1 (worst case): 256 thrds/block, 2 x 524288 element streams
FFT+PS+SM( 8) 26.7 GFlops 47.2 GB/s ulps(fft 1.2,ps 4324.2) [OK]
FFT+PS+SM( 16) 66.9 GFlops 91.3 GB/s ulps(fft 1.6,ps 4326.2) [OK]
FFT+PS+SM( 32) 90.9 GFlops 101.5 GB/s ulps(fft 1.3,ps 4003.6) [OK]
FFT+PS+SM( 64) 105.0 GFlops 99.4 GB/s ulps(fft 1.5,ps 4270.2) [OK]
FFT+PS+SM( 128) 94.0 GFlops 77.3 GB/s ulps(fft 1.7,ps 4347.9) [OK]
FFT+PS+SM( 256) 135.9 GFlops 98.9 GB/s ulps(fft 1.7,ps 4261.8) [OK]
FFT+PS+SM( 512) 167.9 GFlops 109.7 GB/s ulps(fft 1.8,ps 4327.4) [OK]
FFT+PS+SM( 1024) 198.4 GFlops 117.6 GB/s ulps(fft 2.1,ps 4727.6) [OK]
FFT+PS+SM( 2048) 209.1 GFlops 113.4 GB/s ulps(fft 2.2,ps 4921.2) [OK]
FFT+PS+SM( 4096) 209.9 GFlops 105.0 GB/s ulps(fft 2.2,ps 4764.3) [OK]
FFT+PS+SM( 8192) 204.8 GFlops 95.0 GB/s ulps(fft 2.6,ps 5278.8) [OK]
FFT+PS+SM( 16384) 205.0 GFlops 88.6 GB/s ulps(fft 2.6,ps 5357.5) [OK]
FFT+PS+SM( 32768) 187.5 GFlops 75.9 GB/s ulps(fft 2.3,ps 4992.8) [OK]
FFT+PS+SM( 65536) 195.2 GFlops 74.4 GB/s ulps(fft 2.0,ps 4604.3) [OK]
FFT+PS+SM(131072) 172.5 GFlops 62.0 GB/s ulps(fft 2.7,ps 5392.8) [OK]

Jason G · « **Reply #283 on:** 26 Dec 2010, 12:13:36 pm »

Updated first Post:

Quote

Update: PowerPsectrum Test #10 (attached)
- summary performance of FFT pipeline improvements against stock, for assessing overall progress
- can vary, so may need a few runs, just to check stability of result
- Please use DLLs provided with Test#9

arkayn · « **Reply #284 on:** 26 Dec 2010, 12:33:43 pm »

Code: [Select]

Device: GeForce GTX 460, 1600 MHz clock, 768 MB memory.
Compute capability 2.1
Compiled with CUDA 3020.
		PowerSpectrum+summax Unit test #10 (FFT pipeline throughput)
Stock:
  Processing... Done!
  Compute Thoughput GFlops Avg(   67.27) Peak(  111.28) Min(    9.42) [OK]
   Memory thoughput GB/s   Avg(   36.72) Peak(   55.70) Min(   15.41)


Opt1 (worst case): 256 thrds/block, 2 x 524288 element streams
  revert to single stream from size 512
  Processing... Done!
  Compute thoughput [GFlops] -
      Avg(   84.36, 1.25x) Peak(  131.47, 1.18x) Min(   31.13, 3.30x) [OK]
   Memory thoughput [GB/s]   -
      Avg(   51.22, 1.39x) Peak(   66.16, 1.19x) Min(   34.18, 2.22x)

Author Topic: [Split] PowerSpectrum Unit Test (Read 138428 times)

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