There are new optimized versions for x86_64 windows, x86_64 linux and Raspberry Pi released. Computing times are shorten to half. I also thank to HA-SOFT for the code optimization.

Radim Vančo (Kyong)

Please take a look at time estimates, on my machine the new optimized version 1.01 is estimated at 25+ hours and the old 1.00 were coming in at 1.5 hrs.

There are new optimized versions for x86_64 windows, x86_64 linux and Raspberry Pi released. Computing times are shorten to half. I also thank to HA-SOFT for the code optimization.

Where?

---

Dublin, California
Team: SETI.USA

Against the top host optimized app 4 times slower.

Snow Crash: I will change it but the estimates times will have affect on new batch in the queue.

zombie67: In the apps, just update you project and the new application will be downloaded.

rebirther: The top host optimized app uses AVX optimizations, these apps have the basic code optimized without SSE, SSE2 etc. so that computation is faster on processors without these instructions, especially ARM. More optimized applications that use these instructions are in preparation.

Added optimized x86 linux version.

Snow Crash: I will change it but the estimates times will have affect on new batch in the queue.

zombie67: In the apps, just update you project and the new application will be downloaded.

rebirther: The top host optimized app uses AVX optimizations, these apps have the basic code optimized without SSE, SSE2 etc. so that computation is faster on processors without these instructions, especially ARM. More optimized applications that use these instructions are in preparation.

Good to hear. I need AVX ;)

zombie67: In the apps, just update you project and the new application will be downloaded.

Ah! I thought you meant apps that we manually used via Anonymous Platform. Got it.

---

Dublin, California
Team: SETI.USA

Re: Est flops

On a couple of my Raspberry Pi's I got the 101 app and a single task.

The 100 app used to take 67 hours (80 hours without overclock). The 101 app is estimating 260 hours so they've been running high priority since. I realize you can't easily fix the flops for the current work in the queue but can you reduce it for the new ones please.

---

BOINC blog

Asteroids@home 3:26:45 2013-08-09 星期日 14:26:15 period Search application 100.00 ps_130726_12670_166_1

Asteroids@home 1:44:47 2013-08-09 星期日 14:26:15 period Search application 100.00 ps_130726_12682_98_0

3:26:45VS1:44:47

Awesome! 1hr 33mins to 47 mins on a 3570K. Great work :)

We are now developing SSE3 and AVX version so it will be even faster. But we still need a time.

Any idea why the linux64 app isn't 2x faster? There's an improvement, but not a 2 fold decrease in crunch time like the windows app.

EDIT: link to my 2600K running linux

http://asteroidsathome.net/boinc/results.php?hostid=37254

Are you computing more projects there? What about HT, is it on or off? On this type of processor it should by 2x faster.

HT is on and I'm also running GPU grid on a GTX460. So 8 threads total and GPU grid is stealing processor time both on the old and new asteroids app.

I'll experiment a bit and get back to you.

Oh heck yes. Computation time on my windows and linux machines has been cut in half and then some, keep up the great work!

What about a mac version? Or is it compiled with these optimisations already?

Re: Est flops

On a couple of my Raspberry Pi's I got the 101 app and a single task.

The 100 app used to take 67 hours (80 hours without overclock). The 101 app is estimating 260 hours

Two tasks on Raspberry Pi completed so far. 45:19 and 47:51 with a medium OC.

---

BOINC blog

Any idea why the linux64 app isn't 2x faster? There's an improvement, but not a 2 fold decrease in crunch time like the windows app.

Hyper Threading.


My crunch times:
Raspbian 2.6.11+, RaspberryPI@950MHz: 55h ... 63h to 45h
Debian Squeeze 2.6.32 i686, AMD Geode LX@500MHz: 90h ... 150h to <in-progress>
Debian Squeeze 3.2.0 amd64, AMD X2 4600+@2,4GHz(SSE3): 4,3h ... 5h to 3,1h
Debian Wheezy 3.2.0 amd64, Intel Core 2 6400@2,13GHz(SSE3): 5h ... 5,8h to 2,3h
Debian Lenny 2.6.39 i686, Intel P4 M@2GHz(SSE2): 11,1h to 5,9h
Debian Wheezy 3.2.0 i486, Intel Celeron M@1,4GHz(SSE2): 7,7h to 3,8h
Debian Wheezy 3.2.41 i686, Intel P3-S@1,4GHz(SSE): 8h to 4,4h
Debian Wheezy 3.2.0 amd64, AMD X6 1090T@3,8GHz(SSE3): 2,7h to 1,22h
Debian Wheezy 3.10.3 amd64, Intel i7-3632QM@2,88GHz(AVX): 2,5h ... 4h to 1,58h

Any idea why the linux64 app isn't 2x faster?

Mine is two times faster, it's a C2Q9450 with ubuntu Version 12.04 (precise) (64-Bit).

---

Grüße vom Sänger