GNU/Linux 64 bit S5R3 "power users" App 4.28 available

M. Schmitt
M. Schmitt
Joined: 27 Jun 05
Posts: 478
Credit: 15872262
RAC: 0

It looks like 7h WUs will

It looks like 7h WUs will take about 10h.
OpenSuSE 10.3, AMD X2 65nm.

A real snail. :(

cu,
Michael

Crunch3r
Crunch3r
Joined: 22 Jan 05
Posts: 90
Credit: 30237616
RAC: 0

RE: It looks like 7h WUs

Message 78525 in response to message 78524

Quote:

It looks like 7h WUs will take about 10h.
OpenSuSE 10.3, AMD X2 65nm.

A real snail. :(

cu,
Michael

This looks like as if the code is not 64 bit clean. Possibly an issue in Pointer lengths in ComputeFStatistic.c ....

but i could be wrong ....

M. Schmitt
M. Schmitt
Joined: 27 Jun 05
Posts: 478
Credit: 15872262
RAC: 0

RE: RE: It looks like 7h

Message 78526 in response to message 78525

Quote:
Quote:

It looks like 7h WUs will take about 10h.
OpenSuSE 10.3, AMD X2 65nm.

A real snail. :(

cu,
Michael

This looks like as if the code is not 64 bit clean. Possibly an issue in Pointer lengths in ComputeFStatistic.c ....

but i could be wrong ....

Well I think as soon there is a 64Bit Windows app, Akos will have a deeper look in the asm code. If it's true that he doesn't have the source, that's all he can do. But if you look at his Intel and his AMD quad, you can get an impression what can be done. :)

cu,
Michael

Crunch3r
Crunch3r
Joined: 22 Jan 05
Posts: 90
Credit: 30237616
RAC: 0

RE: Well I think as soon

Message 78527 in response to message 78526

Quote:

Well I think as soon there is a 64Bit Windows app, Akos will have a deeper look in the asm code. If it's true that he doesn't have the source, that's all he can do. But if you look at his Intel and his AMD quad, you can get an impression what can be done. :)

cu,
Michael

Well there' one thing that won't work ... there's NO inline asm support in vs2005 for 64 bit, so you need to use intrinsics instead ... or rewrite the code to use some external calls to the asm stuff...

EDIT
Second thing that won't work is that you cannot call a 64 bit compiler from the 32 bit cygwin environment that is used to compile the windows apps.

Wich leads to great trouble building "lal" since you have to create a solution file for this/and rework the script beeing used to compile the app ... (gsl, fftw3 etc compiles fine under vs2005)

/EDIT

Bernd Machenschalk
Bernd Machenschalk
Moderator
Administrator
Joined: 15 Oct 04
Posts: 4273
Credit: 245287196
RAC: 11935

RE: Well there' one thing

Message 78528 in response to message 78527

Quote:
Well there' one thing that won't work ... there's NO inline asm support in vs2005 for 64 bit, so you need to use intrinsics instead


If you would write an intrinsics version of the SSE code I'd be happy to put it into the source code. Probably my AltiVec version of the HotLoop is a better starting point for this than the current assembler version.

BM

BM

Crunch3r
Crunch3r
Joined: 22 Jan 05
Posts: 90
Credit: 30237616
RAC: 0

RE: If you would write an

Message 78529 in response to message 78528

Quote:


If you would write an intrinsics version of the SSE code I'd be happy to put it into the source code. Probably my AltiVec version of the HotLoop is a better starting point for this than the current assembler version.

BM

sorry but i don't have the time to do this. However first starting point would be to get rid of the cygwin stuff and building the lal or lalsupport libs natively as a vs solution.

However if you think you can't go that way, well you could try using the mingw cross compiler on a 64 bit linux to build native 64 bit windows apps.
It works and i already tested that one.

But IMO that's the wrong way to go...

Anyhow, there are at least 10 qualified programmers participating on E@H that could help you getting your code working....

To sad to see that E@H is open source since 2007 and the code is beeing held back since that...

good luck to you all

Bikeman (Heinz-Bernd Eggenstein)
Bikeman (Heinz-...
Moderator
Joined: 28 Aug 06
Posts: 3522
Credit: 691178510
RAC: 249907

@crunch3er As you have

@crunch3er

As you have noted yourself in another thread:

Quote:

btw, a 64 bit app won't be any faster at all...


which I absolutely agree to.

And the Linux 64 bits 4.28 app now seems to confirm this (no cygwin there, no problems with inline assembler either). So if you don't expect any speedup, why go thru all the pain of changing the whole build process under windows?

Bikeman

Crunch3r
Crunch3r
Joined: 22 Jan 05
Posts: 90
Credit: 30237616
RAC: 0

RE: @crunch3er As you have

Message 78531 in response to message 78530

Quote:

@crunch3er

As you have noted yourself in another thread:

Quote:

btw, a 64 bit app won't be any faster at all...

which I absolutely agree to.

And the Linux 64 bits 4.28 app now seems to confirm this (no cygwin there, no problems with inline assembler either). So if you don't expect any speedup, why go thru all the pain of changing the whole build process under windows?

Bikeman

no you got that wrong... sure i won't be faster the way it is compiled now cuz it's done the WRONG way.

As we've seen the code is not 64 bit clean... due to some "long"... issues ;)

However, if the code would be clean it's easy to get a speedup by at least 10% since we can safely assume that ANY 64 bit capable cpu running a 64 bit OS is able to use SSE2 instruction set... get the drift ?

the rest ... you'll figure out by yourself ;)

M. Schmitt
M. Schmitt
Joined: 27 Jun 05
Posts: 478
Credit: 15872262
RAC: 0

Ok, I finished 2 WUs which

Ok, I finished 2 WUs which took more than 41 ks instead of <25 ks. :(

At least it's really positive that there finally is a start in the 64Bit era. :)
Reading the AMD specs about 64Bit coding and optimizing for speed gives the impression to me, that it might be a lot of work until this app is performing well.
Imho it would be a good idea to give the source to some volunteer developers, because work done for 64Bit apps will probable be of little benefit for 32Bit apps. On the other side I don't think it will take too long until the 32Bit era is over.

cu,
Michael

M. Schmitt
M. Schmitt
Joined: 27 Jun 05
Posts: 478
Credit: 15872262
RAC: 0

After "downgrading" to 4.27 I

After "downgrading" to 4.27 I get the following messages in my logfile:

2008-02-11 09:51:50 [Einstein@Home] Sending scheduler request: To fetch work
2008-02-11 09:51:50 [Einstein@Home] Requesting 360288 seconds of new work
2008-02-11 09:52:00 [Einstein@Home] Scheduler RPC succeeded [server version 601]
2008-02-11 09:52:00 [Einstein@Home] Message from server: Resent lost result h1_0858.75_S5R3__447_S5R3b_0
2008-02-11 09:52:00 [Einstein@Home] Message from server: Resent lost result h1_0763.30_S5R2__140_S5R3a_2
2008-02-11 09:52:00 [Einstein@Home] Message from server: Resent lost result h1_0858.75_S5R3__446_S5R3b_0
2008-02-11 09:52:00 [Einstein@Home] Message from server: Resent lost result h1_0858.75_S5R3__445_S5R3b_0
2008-02-11 09:52:00 [Einstein@Home] Message from server: Resent lost result h1_0858.75_S5R3__444_S5R3b_0
2008-02-11 09:52:00 [Einstein@Home] Message from server: Resent lost result h1_0858.75_S5R3__443_S5R3b_0
2008-02-11 09:52:00 [Einstein@Home] [error] No app version for result: x86_64-pc-linux-gnu -1
2008-02-11 09:52:00 [Einstein@Home] [error] No app version for result: x86_64-pc-linux-gnu -1
2008-02-11 09:52:00 [Einstein@Home] [error] No app version for result: x86_64-pc-linux-gnu -1
2008-02-11 09:52:00 [Einstein@Home] [error] No app version for result: x86_64-pc-linux-gnu -1
2008-02-11 09:52:00 [Einstein@Home] [error] No app version for result: x86_64-pc-linux-gnu -1
2008-02-11 09:52:00 [Einstein@Home] [error] No app version for result: x86_64-pc-linux-gnu -1
2008-02-11 09:52:00 [Einstein@Home] Deferring communication for 6 min 28 sec
2008-02-11 09:52:00 [Einstein@Home] Reason: no work from project

This has happened a couple of times already.

cu,
Michael

Comment viewing options

Select your preferred way to display the comments and click "Save settings" to activate your changes.