Berk, On Tue, Oct 20, 2015 at 4:00 PM, Berk Geveci <[email protected]> wrote:
> Hi folks, > > I wanted to close the loop on this. Here are my findings: > > * ParaView master (4.4 should also do) + OpenGL2 + NVIDIA Tesla w 12 GB > memory: I verified that I can volume render data up to the capacity of the > card. I could volume render a 1400x1400x1400 volume of floats. > > * ParaView master (4.4 should also do) + OpenGL2 + Mesa (OSMesa 11, > llvmpipe, swrast): Mesa has some fairly small limits on 3D texture size, > which is what we use for volume rendering. So, ~ 1000x1000x1000 will be the > upper end of what can be done for now. In time, we will implement multiple > textures / streaming to enable rendering of larger volumes. > Did you see my other email? You can change the default for OSMesa. I sent it last week. - Aashish > > Best, > -berk > > On Mon, Sep 28, 2015 at 11:00 AM, David Trudgian < > [email protected]> wrote: > >> Berk, >> >> >> >> Thanks very much for looking into this. Look forward to trying things out >> whenever they’re ready. >> >> >> >> DT >> >> >> >> -- >> David Trudgian Ph.D. >> Computational Scientist, BioHPC >> UT Southwestern Medical Center >> Dallas, TX 75390-9039 >> Tel: (214) 648-4833 >> >> >> >> *From:* Berk Geveci [mailto:[email protected]] >> *Sent:* Monday, September 28, 2015 9:58 AM >> >> *To:* David Trudgian <[email protected]> >> *Cc:* ParaView Mailing List <[email protected]> >> *Subject:* Re: [Paraview] Volume Rendering 17GB 8.5 billion cell volume >> >> >> >> Hi David, >> >> >> >> I have been trying to find some cycles to check this out myself with >> ParaView 4.4. Thanks to hardware issues (i.e. my big workstation's disk >> dying), I haven't been able to. Good news is that I found issues with >> OSMesa + OpenGL2 that we are working through. Give me another 1-1.5 weeks. >> >> >> >> Best, >> >> -berk >> >> >> >> On Mon, Sep 28, 2015 at 10:46 AM, David Trudgian < >> [email protected]> wrote: >> >> Hi Berk, >> >> >> >> Finally managed to grab an allocation of some Tesla K40 nodes on our >> cluster, to check GPU rendering of the full 17GB file with 2 x 12GB GPUs. I >> see the same thing as I did with OSMesa rendering. >> >> >> >> The 9GB downsampled version works great, across 2 nodes both with a >> single K40. Go up to the 17GB original file and nothing is rendered, no >> errors. Same behavior with OPENGL or OPENGL2 backends. >> >> >> >> This is all on paraview 4.3.1 still – I need to find time to build OSMesa >> / MPI versions of 4.4 here. But, does 4.4. have any fixes that would be >> expected to affect this? >> >> >> >> Thanks, >> >> >> >> -- >> David Trudgian Ph.D. >> Computational Scientist, BioHPC >> UT Southwestern Medical Center >> Dallas, TX 75390-9039 >> Tel: (214) 648-4833 >> >> >> >> *From:* Berk Geveci [mailto:[email protected]] >> *Sent:* Tuesday, September 15, 2015 2:43 PM >> *To:* David Trudgian <[email protected]> >> *Cc:* ParaView Mailing List <[email protected]> >> *Subject:* Re: [Paraview] Volume Rendering 17GB 8.5 billion cell volume >> >> >> >> Hey David, >> >> >> >> I am hoping to have some time to play around with volume rendering and >> hopefully tracking this issue, one thing that I wanted to clarify: it >> sounds from you description that you have a short (2 byte) value. Is that >> correct? >> >> >> >> Thanks, >> >> -berk >> >> >> >> On Wed, Sep 9, 2015 at 5:00 PM, David Trudgian < >> [email protected]> wrote: >> >> Hi, >> >> We have been experimenting with using Paraview to display very volumes >> from very >> large TIFF stacks generated by whole-brain microscopy equipment. The test >> stack >> has dimensions of 5,368x10,695x150. Stack is assembled in ImageJ from >> individual >> TIFFs, exported as a RAW and loaded into paraview. Saved as a .vti for >> convenience. Can view slices fine in standalone paraview client on a >> 256GB machine. >> >> When we attempt volume rendering on this data across multiple nodes with >> MPI >> nothing appears in the client. Surface view works as expected. On >> switching to >> volume rendering the client's display will show nothing. There are no >> messages >> from the client or servers - no output. >> >> This is happening when running pvserver across GPU nodes with NVIDIA Tesla >> cards, or using CPU only with OSMESA. pvserver memory usage is well below >> what >> we have on the nodes - no memory warnings/errors. >> >> Data is about 17GB, 8 billion cells. If we downsize to ~4GB or ~9GB then >> we can >> get working volume rendering. The 17GB never works regardless of scaling >> nodes/mpi processes. The 4/9GB will work on 1 or 2 nodes. >> >> Am confused by the lack of rendering, as we don't have memory issues, or >> an >> other messages at all. Am wondering if there are any inherent limitation, >> or I'm >> missing something stupid. >> >> Thanks, >> >> Dave Trudgian >> >> >> _______________________________________________ >> Powered by www.kitware.com >> >> Visit other Kitware open-source projects at >> http://www.kitware.com/opensource/opensource.html >> >> Please keep messages on-topic and check the ParaView Wiki at: >> http://paraview.org/Wiki/ParaView >> >> Search the list archives at: http://markmail.org/search/?q=ParaView >> >> Follow this link to subscribe/unsubscribe: >> http://public.kitware.com/mailman/listinfo/paraview >> >> >> >> >> ------------------------------ >> >> *UT** Southwestern* >> >> Medical Center >> >> The future of medicine, today. >> >> >> > > > _______________________________________________ > Powered by www.kitware.com > > Visit other Kitware open-source projects at > http://www.kitware.com/opensource/opensource.html > > Please keep messages on-topic and check the ParaView Wiki at: > http://paraview.org/Wiki/ParaView > > Search the list archives at: http://markmail.org/search/?q=ParaView > > Follow this link to subscribe/unsubscribe: > http://public.kitware.com/mailman/listinfo/paraview > > -- *| Aashish Chaudhary | Technical Leader | Kitware Inc. * *| http://www.kitware.com/company/team/chaudhary.html <http://www.kitware.com/company/team/chaudhary.html>*
_______________________________________________ Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the ParaView Wiki at: http://paraview.org/Wiki/ParaView Search the list archives at: http://markmail.org/search/?q=ParaView Follow this link to subscribe/unsubscribe: http://public.kitware.com/mailman/listinfo/paraview
