![]() (II) GLX: Initialized DRI2 GL provider for screen 0ĭRI_PRIME=1 or 2 is not working anymore. ![]() (II) intel(0): direct rendering: DRI2 DRI3 enabled Maybe I have to configure both I mean also the intel driver?Įdit2: adding also a nf X starts ok and DRI 3 is enabled: In Xorg.0.log appears the "No device detected" error. I tried to enable DRI 3 but I've got a black screen, I'll retry now that I have the Oibaf ppa enabledĮdit: same problem, enabling DRI 3 I got a low graphic mode message. Actually I tried to upgrade but something gone wrong so I installed from the live iso formatting the root "/" partition (the home is in another partition). I enabled the Oibaf ppa and then installed also the 4.7 kernel but it is the idea? While I really appreciate the open driver and now the notebook is using less power (very nice thing) I think I'm having some problem with OpenGL.įrom mesamatrix, if I'm not wrong, the r600 support the 4.1 version while on my system the version appears to be 3.0. HD5800 chips my have the support full double precision but they dont have. I would like to thank all members of Mesa and particularly Ian Romanick, my mentor.Moving to Ubuntu 16.04 from 14.04 I run now the open driver vs fglrx. Not true as HD5800 chips support full double precision support in OpenCL. I’m not a fan of web development but it’s was a pleasure to maintain and play with this website. To create this blog, I’m using Jekyll host on GitHub. I think this choice will help me in the future. Now, I’m using vim with pluggins as IDE and i3WM as WM. More over, I took some time to rice my working environment. Airlie is preparing to merge that code along with various changes he has made since then, including the option for Gallium3D drivers to individually decide about opting in or not to this emulated FP64 support. Gain for me:ĭuring this summer, I discovered a shading language call GLSL and I improved my knowledge about double precision floating point. The soft FP64 support within GLSL shaders is the work originally done by former GSoC contributor Elie Tournier. I engage with Mesa to provide the librairy so I will finish it.Īfter that, I will continue to contribute to the project.Ī stretch goal would be to use this library of functions to implement ‘GL_ARB_gpu_shader_fp64’ on all GPUs for which Mesa supports GLSL 1.30. The list of my commits are available at FunctionĬompiler OK but trouble with the algorithm The functions I have to implement are the following: I should therefore translate one of this library (generally write in C) to pure GLSL 1.30. There are many library of software double precision floating point for devices that lack floating-point hardware. The goal of this project is to implement a library of double precision operations in pure GLSL 1.30 for this GPU using bit twiddling operations and integer math. ![]() GPUs natively support single precision, but only OpenGL 4.0 class GPUs have hardware support for double precision. Mesa ties into several other open-source projects: the Direct Rendering Infrastructure and X.org to provide OpenGL support to users of X on Linux, FreeBSD and other operating systems. Mesa is an open-source implementation of the OpenGL specification - a system for rendering interactive 3D graphics.Ī variety of device drivers allows Mesa to be used in many different environments ranging from software emulation to complete hardware acceleration for modern GPUs. AMD ROCm is an open software platform allowing researchers to take advantage of AMD Instinct accelerators to drive scientific. be preferable to software emulation of smaller memory real calculations. The organisation:ĭuring this GSoC, I worked on the Mesa project. To define multiple real precisions in a program, which are relative to each. ![]() Elie has been working on this library written in pure GLSL to support double precision operations in GLSL capable of running on OpenGL 3.0 GPUs (making use of GLSL 1.30). You can find me on GitHub or on LinkedIn. With potential soft/emulated ARBgpushaderfp64 support, this could be good news for those GPUs lacking real double precision support. to improve compute performance, especially for double precision computations, while reducing. Me:įor the people who don’t know me, I’m Elie Tournier, and I finish in June my study in IT engineering at Télécom Physique in Strasbourg, France. IPC of the benchmark programs ran on the GTX Titan X. The list of my commits done during the GSoC are available at. For more information about FP64 emulation, please see To check for double-precision floating point support, check whether the device supports clkhtfp64 extension. The purpose of this post is to present the project progress. Note that FP64 emulation is only supported on Linux. It’s the last week of the Google Summer of Code but not of my contribution to Mesa. ![]()
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