Hi jcastro, please make the optimized application available to everyone.

If Crunch3r´s numbers are correct and an optimization can bring up to 10-14 times better speed it is something significant and should be made available to the whole DENIS community.

There is a option in the BOINC computing preferences (network tab) to put a limit on the upload rate.

On the Daily schedules tab you can set transfer time slots. Perhaps a different time for each host.

No one want to try to compile an optimized app??

Worse here. Started a new thread because I've twice had the same computer sat full of tasks that are "Ready To Report" but no amount of spamming the update button would clear them. Project reset worked the first time but when I detached the project and re-added it, I'm not getting anything at all.

Still got a major problem with the number of completed tasks stored on the server. It needs limiting to the last 1,000 or less. I haven't been able to open a page to show completed tasks on 2 computers for weeks :(

Update: V3, added SSE41, speed improvement

(on par with with sesefs windows apps, sometimes faster)

Linux version works fine, but both SS3 and SSE41 versions of this end up with immediate Computation errors on OSX. Version from 1st of October works.

If a system can support both SSE2 and SSE3 versions, is there an advantage to using one over the other? Some very quick tests on my 64 bit Linux systems show pretty much the same times for both versions (and they are about 85%-90% faster than the stock version).

Also, any chance of a 32 bit Linux version for SSE2? I've got one lone cruncher of that kind that could use some help.

(New to this project, not to BOINC.)

Thanks
Charlie

sesefs app is not compatible with AMD cpus. try one of my windows apps. they will work on amd cpus.

Thanks for the info.
But i find only your "Windows 64bit SSE3"(http://www.boincunited.org/opt_apps/denis/denis_1.05_x86_64-windows__sse3.zip) and it's NOT an exe file.

It's a problem of Win10?

Nope. Edit: the second win10 (Intel Core I3 mobile) crunchs without problems the 1.5.5 version.
Mmm, all errors are on AMD FX6300 (with 5 core cpu free for cpu projects and 1 core for gpu). May be this?

OK.. Here's the code and binary for 64 bit linux SSE2.
(copy&paste the link to download otherwise you'll get an error message)

http://www.boincunited.org/opt_apps/DENIS@Home_Linux_x64.tar.bz2

Instead of using Intels SVML, i've used the free of charge "amd libm"
(http://developer.amd.com/tools-and-sdks/cpu-development/libm/)
see "simd.h"

Hope that helps ;)

Impressive job! When I start in this project I couldn't imagine a community as well as this one. You are awesome, thank you so much.

We will work with this one and sesef's version to produce faster apps. We hope we can launch a new version soon.

Best regards, Joel.

If anyone could make the port to Linux possible then Crunch3r would be the one to do it!

We are not expert ( at the moment :) ) On compilators and how they work, so we are learning from the work of others ( like Sesef).

We think that there is a problem with the class __md128 and the system. We have workaround that and it could be a conflict between this class and the linux system one that have the same name.

We are using the code directly from Sesef which can be found here: https://github.com/sesef/denis-boinc-baseapp

We are also working on the new version with multimodel support.

Best regards, Joel.

Maybe trying for AVX could bring an additional strong boost...

Yes, we think that sesef solution is based on it. But we have some problems to port this advantages to the linux version, also the main modification of Sesef is in the model code, which is generated automatically from a CellML model.

For the next version of the app we will include multimodel support and optimize each model would be a lot of work and some models are not public available (unpublished work),so we will see which improvements we can port to the next app version.

Best regards, Joel