Dear Chuck, thanks a lot for this suggestion. I never thought about this approach for this setup! That would probably really be a great solution. I’ll give this tomorrow a try.
Thank you! Harald > Am 11.04.2016 um 20:54 schrieb Chuck Atkins <chuck.atk...@kitware.com>: > > Hi Harald, > > I don't have an answer to your VGL problem yet, but in the mean time, are you > tied to having to use it that way? If not, you also have the option of > running ParaView in client / server mode which may actually be more ideal for > your situation: i.e. with pvserver running on the headless server and the > ParaView GUI client on your local machine (workstation / desktop / laptop, > etc.) and connecting to the remote server. Doing so, you can actually bypass > vgl and likely get much better performance. If you're running an X server on > the remote machine, you can do this by setting your DISPLAY variable to the > local x server: > > ssh foo@bigserver > [foo@bigserver ~]$ DISPLAY=:0.0 pvserver > Waiting for client... > Connection URL: cs://bigserver.supercooldomain.com:11111 > Accepting connection(s): bigserver.supercooldomain.com:11111 > > Then in the client you select [Conenct] -> [Add Server] to create the > connection to the remote machine. > > Or I also noticed that you're running a very recent version of the NVidia > driver. I believe this actually has EGL support, which will allow you to > build ParaView configured to use the GPU for off screen rendering with no X > server necessary at all. To do this, configure ParaView with the following > CMake options: > • -DVTK_RENDERING_BACKEND=OpenGL2 > • -DVTK_USE_OFFSCREEN_EGL=ON > You would then run pvserver on the remote machine with no need for an X > server and connect to it with the GUI client in the same way. > > > - Chuck > > On Mon, Apr 11, 2016 at 1:07 PM, Harald Klimach <har...@klimachs.de> wrote: > Dear Chuck, dear Ken, > > thanks for the replies. > > > I've had similar issues with VirtulGL and VTK in the past. The "Shader > > object was not initialized, cannot attach it." error is often the result of > > some sort of required OpenGL version support for a specific call is > > lacking. A few questions: > > • Are you able to run on the actual machine without Virtual GL? > the machine is a headless server down in our machine room, and I can not > easily access it. > > > • What does the output of glxinfo running in the x2go+VirtualGL > > environment look like? > Here is how it looks like: > $ vglrun glxinfo > name of display: :55 > display: :55 screen: 0 > direct rendering: Yes > server glx vendor string: VirtualGL > server glx version string: 1.4 > server glx extensions: > GLX_ARB_create_context, GLX_ARB_create_context_profile, > GLX_ARB_get_proc_address, GLX_ARB_multisample, GLX_EXT_swap_control, > GLX_EXT_texture_from_pixmap, GLX_EXT_visual_info, GLX_EXT_visual_rating, > GLX_SGIX_fbconfig, GLX_SGIX_pbuffer, GLX_SGI_make_current_read, > GLX_SGI_swap_control, GLX_SUN_get_transparent_index > client glx vendor string: VirtualGL > client glx version string: 1.4 > client glx extensions: > GLX_ARB_create_context, GLX_ARB_create_context_profile, > GLX_ARB_get_proc_address, GLX_ARB_multisample, GLX_EXT_swap_control, > GLX_EXT_texture_from_pixmap, GLX_EXT_visual_info, GLX_EXT_visual_rating, > GLX_SGIX_fbconfig, GLX_SGIX_pbuffer, GLX_SGI_make_current_read, > GLX_SGI_swap_control, GLX_SUN_get_transparent_index > GLX version: 1.4 > GLX extensions: > GLX_ARB_create_context, GLX_ARB_create_context_profile, > GLX_ARB_get_proc_address, GLX_ARB_multisample, GLX_EXT_swap_control, > GLX_EXT_texture_from_pixmap, GLX_EXT_visual_info, GLX_EXT_visual_rating, > GLX_SGIX_fbconfig, GLX_SGIX_pbuffer, GLX_SGI_make_current_read, > GLX_SGI_swap_control, GLX_SUN_get_transparent_index > OpenGL vendor string: NVIDIA Corporation > OpenGL renderer string: Tesla M2075/PCIe/SSE2 > OpenGL core profile version string: 4.5.0 NVIDIA 361.28 > OpenGL core profile shading language version string: 4.50 NVIDIA > OpenGL core profile context flags: (none) > OpenGL core profile profile mask: core profile > … > lots of extensions > … > OpenGL version string: 4.5.0 NVIDIA 361.28 > OpenGL shading language version string: 4.50 NVIDIA > OpenGL context flags: (none) > OpenGL profile mask: (none) > > > --- > Without vglrun I get: > > $ glxinfo > name of display: :55 > display: :55 screen: 0 > direct rendering: No (If you want to find out why, try setting > LIBGL_DEBUG=verbose) > server glx vendor string: SGI > server glx version string: 1.2 > server glx extensions: > GLX_ARB_multisample, GLX_EXT_import_context, GLX_EXT_visual_info, > GLX_EXT_visual_rating, GLX_OML_swap_method, GLX_SGIS_multisample, > GLX_SGIX_fbconfig, GLX_SGIX_hyperpipe, GLX_SGIX_swap_barrier, > GLX_SGI_make_current_read > client glx vendor string: NVIDIA Corporation > client glx version string: 1.4 > client glx extensions: > GLX_ARB_context_flush_control, GLX_ARB_create_context, > GLX_ARB_create_context_profile, GLX_ARB_create_context_robustness, > GLX_ARB_fbconfig_float, GLX_ARB_get_proc_address, GLX_ARB_multisample, > GLX_EXT_buffer_age, GLX_EXT_create_context_es2_profile, > GLX_EXT_create_context_es_profile, GLX_EXT_fbconfig_packed_float, > GLX_EXT_framebuffer_sRGB, GLX_EXT_import_context, GLX_EXT_stereo_tree, > GLX_EXT_swap_control, GLX_EXT_swap_control_tear, > GLX_EXT_texture_from_pixmap, GLX_EXT_visual_info, GLX_EXT_visual_rating, > GLX_NV_copy_buffer, GLX_NV_copy_image, GLX_NV_delay_before_swap, > GLX_NV_float_buffer, GLX_NV_multisample_coverage, GLX_NV_present_video, > GLX_NV_swap_group, GLX_NV_video_capture, GLX_NV_video_out, > GLX_SGIX_fbconfig, GLX_SGIX_pbuffer, GLX_SGI_swap_control, > GLX_SGI_video_sync > GLX version: 1.2 > GLX extensions: > GLX_ARB_get_proc_address, GLX_ARB_multisample, GLX_EXT_import_context, > GLX_EXT_visual_info, GLX_EXT_visual_rating, GLX_SGIX_fbconfig > OpenGL vendor string: Mesa project: www.mesa3d.org > OpenGL renderer string: Mesa GLX Indirect > OpenGL version string: 1.2 (1.5 Mesa 6.4.1) > > > --- > On my local box, I get: > > $ glxinfo > name of display: > /private/tmp/com.apple.launchd.vDdJxiOxqs/org.macosforge.xquartz:0 > display: /private/tmp/com.apple.launchd.vDdJxiOxqs/org.macosforge.xquartz:0 > screen: 0 > direct rendering: Yes > server glx vendor string: SGI > server glx version string: 1.4 > server glx extensions: > GLX_ARB_multisample, GLX_EXT_import_context, GLX_EXT_visual_info, > GLX_EXT_visual_rating, GLX_OML_swap_method, GLX_SGIS_multisample, > GLX_SGIX_fbconfig > client glx vendor string: Mesa Project and SGI > client glx version string: 1.4 > client glx extensions: > GLX_ARB_create_context, GLX_ARB_create_context_profile, > GLX_ARB_create_context_robustness, GLX_ARB_fbconfig_float, > GLX_ARB_framebuffer_sRGB, GLX_ARB_get_proc_address, GLX_ARB_multisample, > GLX_EXT_buffer_age, GLX_EXT_create_context_es2_profile, > GLX_EXT_fbconfig_packed_float, GLX_EXT_framebuffer_sRGB, > GLX_EXT_import_context, GLX_EXT_texture_from_pixmap, GLX_EXT_visual_info, > GLX_EXT_visual_rating, GLX_INTEL_swap_event, GLX_MESA_copy_sub_buffer, > GLX_MESA_multithread_makecurrent, GLX_MESA_query_renderer, > GLX_MESA_swap_control, GLX_OML_swap_method, GLX_OML_sync_control, > GLX_SGIS_multisample, GLX_SGIX_fbconfig, GLX_SGIX_pbuffer, > GLX_SGIX_visual_select_group, GLX_SGI_make_current_read, > GLX_SGI_swap_control, GLX_SGI_video_sync > GLX version: 1.4 > GLX extensions: > GLX_ARB_get_proc_address, GLX_ARB_multisample, GLX_EXT_import_context, > GLX_EXT_visual_info, GLX_EXT_visual_rating, > GLX_MESA_multithread_makecurrent, GLX_OML_swap_method, > GLX_SGIS_multisample, GLX_SGIX_fbconfig > OpenGL vendor string: Intel > OpenGL renderer string: Intel(R) Iris(TM) Graphics 6100 > OpenGL version string: 2.1 INTEL-10.6.33 > OpenGL shading language version string: 1.20 > > Paraview 5.0.0 works on my local Mac, but I am not 100% sure, whether it is > using OpenGL2. > Somehow the paraview.org website is not responding right now, so I can’t > download 5.0.1 and > give it another try. > > --- > I also get a segmentation fault if I run with just X-Forwarding in a regular > SSH connection, without > any further information: > $ paraview > Segmentation fault (core dumped) > > --- > If I run in a x2go session, I get: > $ paraview > failed to get the current screen resources > QXcbConnection: XCB error: 172 (Unknown), sequence: 166, resource id: 163, > major code: 149 (Unknown), minor code: 20 > Segmentation fault (core dumped) > > (Where I believe the XCB error is unrelated.) > > --- > If I run paraview in a vglconnect session without x2go, I get the same error > as within the x2go session: > > $ vglrun paraview > ERROR: In > /home/gk772/abs/paraview/src/ParaView-v5.0.1-source/VTK/Rendering/OpenGL2/vtkOpenGLRenderWindow.cxx, > line 575 > vtkXOpenGLRenderWindow (0x3673960): GLEW could not be initialized. > > > ERROR: In > /home/gk772/abs/paraview/src/ParaView-v5.0.1-source/VTK/Rendering/OpenGL2/vtkShaderProgram.cxx, > line 399 > vtkShaderProgram (0x36651f0): Shader object was not initialized, cannot > attach it. > > > Segmentation fault (core dumped) > > > > On Mon, Apr 11, 2016 at 9:56 AM, Ken Martin <ken.mar...@kitware.com> wrote: > > As I understand it VirtualGL should transparently forward OpenGL/GLX/etc > > calls from the server to the client so that the client GPU is used. So my > > guess would be to first try running PV on the client and see if it works. > > If that seems to work fine then you know your client graphics supports PVs > > use of OpenGL and the issue could be in VirtualGL or some PV/VirtualGL > > interaction. > I am always confused with this server and client terminology in the X context. > The remote machine, where I try to run paraview on has a relatively strong > nVidia graphics card, > which we would like to utilize via the virtualgl mechanism. > With the x2go we also try to keep the X-server on that box as much as > possible, thus we have both, > the X-server and the paraview application running there. As far as I > understand it, the graphics > capabilities of my local laptop should not really matter that much in this > scenario. > I probably should try and run paraview on the box itself, but as I said > above, it is not that easily > accessible. > > Thanks a lot! > Harald > _______________________________________________ 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
