What You Need To Know About SPIR-V 1.0

For those that haven't been paying attention to SPIR-V as the new intermediate representation that makes up OpenCL 2.1+ and Vulkan, here's various details about this newest Khronos Group specification you may not be familiar with now that Khronos formally released OpenCL 2.1 and SPIR-V 1.0..

4 Hours Ago - Standards - SPIR-V 1.0 - 1 Comment
Everything You Need To Know About The NVIDIA Jetson TX1 Performance

While last week we were able to write about the NVIDIA Jetson TX1 development board, at that time we weren't able to share any benchmarks or hands-on experience with this ARM board powered by NVIDIA's Tegra X1 SoC. The embargo on that has now expired and as such this morning there are a lot of benchmarks to share with you. There are many benchmarks looking at different areas of the Jetson TX1 including power consumption and thermal. For kicks I've also done some comparisons against the Tegra 2 and Tegra 3 as well as other ARM hardware like the now defunct Calxeda ARM server and Raspberry Pi 2.

8 Hours Ago - Computers - 19 Comments
AMD Plans To Contribute Heterogeneous Compute Compiler

AMD has been open-sourcing several components of their Linux HSA (Heterogeneous System Architecture) stack for the past several months including the AMDKFD kernel driver and HSAKMT run-time. In cooperation with SUSE, they also hope to have HSA accelerator support in GCC 6. Besides the GCC support, AMD is apparently planning to publish a Heterogeneous Compute Compiler.

9 Hours Ago - AMD - Heterogeneous Compute Compiler - 4 Comments
GPUCC: Google's Open-Source CUDA Compiler

Last month I wrote about how Google has been working on CUDA compiler optimizations in LLVM and they were claiming to achieve results where their open-source compiler work was generating better code than NVIDIA's own NVCC compiler. More details are now available.

10 Hours Ago - Compiler - GPUCC Compiler - 5 Comments

15 November

A Look At The New Features Of The Linux 4.4 Kernel

If all goes according to plan, the Linux 4.4 kernel merge window will end today with the release of the 4.4-rc1 kernel. As all of the major subsystem updates have already landed for Linux 4.4, here's my usual look at the highlights for this kernel cycle.

15 November 11:00 AM EST - Software - 3 Comments

14 November

OpenMP 4.5 Now Available

Just ahead of the Super Computing SC15 conference beginning tomorrow in Austin, the OpenMP 4.5 specification has been finalized.

14 November 05:51 PM EST - Standards - OpenMP - 1 Comment
PHP 7.0 vs. HHVM 3.10 Performance Tests

With PHP 7.0 RC7 being the final development version of PHP 7, which is expected to be officially release at the end of the month, I've carried out some fresh benchmarks of PHP using our in-house benchmarking software. Compared in this latest PHP 7 benchmarking comparison is PHP 5.5 as packaged on Ubuntu 14.04 LTS and then comparing fresh builds of PHP 5.6.15 and PHP 7.0.0 RC7. On the HHVM side was using Facebook's HHVM 3.10.1 release as packaged for Ubuntu 14.04 LTS.

14 November 02:20 PM EST - Software - 6 Comments

13 November

AMD Tonga & Fiji Open-Source Performance Boosted By PowerPlay Patches

Yesterday AMD finally posted power management support for the AMDGPU DRM kernel driver when it comes to supported discrete graphics cards like Tonga and Fiji. I've been testing these PowerPlay Linux patches since yesterday to great success. In this article are results from a Radeon R9 285 and Radeon R9 Fury when testing these kernel patches along with the latest Mesa 11.1-devel Git drivers.

13 November 10:30 AM EST - Display Drivers - 52 Comments

12 November

AMD Publishes AMDGPU PowerPlay Support For Re-Clocking / Power Management

AMD has finally published patches for providing preliminary PowerPlay support for the AMDGPU DRM driver, which will eventually replace the current DPM (Dynamic Power Management) support for Volcanic Islands hardware. This PowerPlay support comes with compatibility for Tonga, Fiji, and the rest of the VI line-up!

12 November 09:16 AM EST - AMD - AMDGPU Power Management! - 32 Comments

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