LuxrenderGPU

[tomb]

I don't think anyone has tried compiling lux-opencl on windows yet, so I guess that's why noone chimes in with helpful tips. Me, I'm a linux guy so I just don't know

[KyungSoo]

Hi guys,

I think the LuxRender OpenCL version is in the very early stage.
As far as I tested linux version, it was far from completed version, yet.
Please, calm down and wait a while ......

Dade, can you give us some birief plan, for linux and windows verion?

[tomb]

dougal2: I suggest perhaps moving this thread to the GPU forum...

[Dade]

Dade, can you give us some birief plan, for linux and windows verion?

I'm still doing experiments looking for the best way to keep the GPUs busy. As you have noticed, it is not an easy task and LuxrenderGPU puts even more load on the CPU than SmallLuxGPU. The latest version of SmallLuxGPU (i.e. v1.3beta2) offers enough control to load the GPUs (if you have spare CPU cycles). It is not the kind auto-load balancing would like to have and it requires hand tuning but I guess I have to stop somewhere.

I think the scheduling is the one originally planed and reported in the first post in this threads: we aim to have full OpenCL support for v0.8. The v0.7 is scheduled before summer so I assume we will have the first v0.8 code running at the end of the summer and v0.8 release before the end of the year.

Once the v0.7 is in bug-fix-only mode, there will be probably more developers joining my effort and it should speed up the things a bit (i.e. there is a huge amount of work to do).

We discussed in the developer forum if it was worth trying to rush the OpenCL support earlier but we concluded it would be even useless given the current state of OpenCL drivers of major vendors (i.e. we are not the only with a lot of work to do ).

[dougal2]

dougal2: I suggest perhaps moving this thread to the GPU forum...

I think the idea was that this is a 'public' GPU thread that non-registered people can read.

[tomb]

dougal2: I suggest perhaps moving this thread to the GPU forum...

I think the idea was that this is a 'public' GPU thread that non-registered people can read.

Ah, didn't consider that Nevermind then

[vimax]

So I should understand that only after 0.7 we'll be able to taste the LuxrenderGPU? Guess I'll have to install ubuntu on my friends's computers and see how it behaves on various cards before I upgrade my GPU.

A half year is a long waiting time.

[Conz]

Dade,

maybe gDEBugger could help to optimize LuxrenderGPU.
http://www.gremedy.com/gDEBuggerCL.php
They have started a Beta today.

Selected Features
gDEBugger CL enables OpenCL developers to:
• Locate parallel computing performance bottlenecks
• Edit and continue OpenCL kernels "on the fly"
• Break on OpenCL errors, function calls, memory leaks and more
• View the application's OpenCL memory consumption
• View OpenCL images and buffers data as an image or as "raw data"
• View OpenCL command queues activities and timing measurements
• View the OpenCL calls history
• Display OpenCL and OpenGL interoperability shared objects
• And much more...

Supported platforms
gDEBugger CL is available for Windows, Linux and Mac OS X.

[stalkerok]

and where to download? Luxrender + GPU

[SATtva]

stalkerok, the source code is available here: http://src.luxrender.net/lux-opencl/ Unfortunately, until the project gets more mature, you have to compile it yourself.