Monday, October 20, 2014
Search
  
Submit your own News for
inclusion in our Site.
Click here...
Breaking News
Strong iPhone, Mac And App Store Sales Drive Apple's Record September Quarter Revenue And Earnings
Apple iOS 8.1 Available For Download
E FUN To Relase $179 Windows tablet
Microsoft And Dell Puts Azure In A Box
TDK Brings Wireless Charging To Electric Cars
Intel To Work With AT&T To Research Software Defined Networking
Intel Meegopad T01 Is A Bay Trail PC On HDMI Stick
Biostar Relases New iDEQ-T1 Compact Desktop
Active Discussions
How to generate lots of different CDs quickly
Yamaha CRW-F1UX
help questions structure DVDR
Made video, won't play back easily
Questions durability monitor LCD
Questions fungus CD/DVD Media, Some expert engineer in optical media can help me?
CD, DVD and Blu-ray burning for Android in development
IBM supercharges Power servers with graphics chips
 Home > News > PC Parts > AMD To ...
Last 7 Days News : SU MO TU WE TH FR SA All News

Tuesday, April 30, 2013
AMD To Replace GPU Computing With heterogeneous Computing


AMD will support the specifications describing a uniform memory access technology in its upcoming Kaveri processor set to ship before the end of the year.

The Heterogeneous Systems Architecture (HSA) group is defining specifications for SoCs that mix CPUs, GPUs and potentially other cores. One of its main goals is defining a shared memory space for chip designers and software developers.

To that end, last week AMD held a press conference last week to discuss what it's calling "heterogeneous Uniform Memory Access" (hUMA).

Breaking down bottlenecks in how GPU is accessing the memory is important to the future of programming because it allows apps to efficiently move the right tasks to the best suited processing element. heterogeneous Uniform Memory Access or hUMA is a sophisticated shared memory architecture used in APUs (Accelerated Processing Units). In a hUMA architecture, CPU and GPU (inside APU) have full access to the entire system memory. hUMA main features include:

- Access to entire system memory space: CPU and GPU processes to dynamically allocate memory from the entire memory space
- Pageable Memory: GPU can take page faults, and is no longer restricted to page locked memory
- Bi-directional coherent memory: Any updates made by one processing element will be seen by all other processing elements - GPU or CPU.





Typically in GPGPU chips, whenever a CPU program wants to do some computation on the GPU, it has to copy all the data from the CPU's memory into the GPU's memory. When the GPU computation is finished, all the data has to be copied back. This wastes time and makes it difficult to mix and match code that runs on the CPU and code that runs on the GPU.

HSA's uniform memory access solves the problem, as it lets graphics cores share the same address space as CPU cores with bi-directional coherent access. It gives GPUs full access to both physical and virtual memory. The GPU can directly access CPU memory addresses, allowing it to both read and write data that the CPU is also reading and writing.

AMD says the approach will simplify work for apps programmers allowing them to offer new experiences such as visually rich, intuitive, human-like interactivity. The company also suggests the techniques could boost performance and power efficiency.

Through HSA, AMD wants to enable mainstream languages and programming models and bring heterogeneous compute to the broad development community. The HSA group will provide support for its approach in C++, Java and Python.

The first processor to come to market with HSA hUMA is codenamed Kaveri. It will combine 2-3 compute units using AMD's Steamroller cores with a GPU. The GPU will have full access to system memory.

The upcoming PS4 is also expected to be powered by essentially an HSA system as it its CPU and GPU will have full access to all the system's memory.


Previous
Next
Outlook.com Integrates Skype        All News        Fujitsu To Sell Chip Operations to Spansion
Belkin Thunderbolt Express Dock Now Available     PC Parts News      Toshiba Launches Canvio Connect Portable Hard Drive

Get RSS feed Easy Print E-Mail this Message

Related News
AMD Sales May Miss Estimates, New CEO Announces Restructuring
AMD Appoints Lisa Su as President and Chief Executive Officer
AMD To release Carrizo Notebook APUs Next Year
AMD Demonstrates Network Function Virtualization Solution on 64-Bit Embedded R-Series SoC
AMD To Showcase ARM Cortex-A57-Based Hadoop on Opteron Processors
AMD Moves Closer To The Introduction Of Project FreeSync Monitors
AMD Introduces DirectGMA on AMDs FirePro GPUs
AMD Launches AMD Radeon R9 285 Graphics, "Never Settle: Space Edition" Game Bundle
AMD Introduces New 8-core FX-series Processors
AMD Announces Heterogeneous C++ AMP Language for Developers
New AMD R9 285 Radeon Graphics Card Unveiled
AMD Officially Releases The OCZ-rebranded, Radeon R7 SSDs

Most Popular News
 
Home | News | All News | Reviews | Articles | Guides | Download | Expert Area | Forum | Site Info
Site best viewed at 1024x768+ - CDRINFO.COM 1998-2014 - All rights reserved -
Privacy policy - Contact Us .