Multicore Architecture Of PowerVR - T&VS
Multicore Architecture of PowerVRBob Gardner, Developer Technology Engineer24th September 2012 www.imgtec.com
Company Overview Leading silicon, software & cloud IP supplier Graphics, video, comms, processor, cloud Licensing and royalty business model Licensed to many top 20 semis & OEMs Servicing high volume, high growth markets Solution Centric IP Shipped by most major consumer brands Smartphones, media players, tablets/netbooks, TVs/STBs, gamingdevices, radios, connected devices, dashboards/navigation Strategic product division: PURE Digital radio, internet connected audio (today) IP business pathfinder, market maker Established technology powerhouse 2Founded 1985; London FTSE 250 (IMG.L)Employees: 1,200 UK HQ; operations world-wideGlobal customer baseV01.11 nov07UK HeadquartersR&DSales Imagination TechnologiesMulticore Conference Bristol 2012
If it’s the best, we’re probably in it Approaching 1 billionproductspowered by Imagination Now more than 1m new devices perday around 11 per second3V01.11 nov07 Imagination TechnologiesMulticore Conference Bristol 2012
PowerVR as a MulticoreProcessor www.imgtec.com
What do we mean by Multicore? Multicore is a loaded term To some a core is an ALU, to some it’s a pipeline, to some it’s a chip. In the end what we really want to talk about is parallelprocessing and PowerVR GPUs are massively parallelised.5V01.11 nov07 Imagination TechnologiesMulticore Conference Bristol 2012
How does PowerVR Parallelise? www.imgtec.com
We start with ALUs ALUs (Arithmetic Logic Unit) run a singleinstruction set on multiple data sets The building blocks of modern massively parallelprocessors Immediate parallelisation Basic building blocks of modern graphics7V01.11 nov07 Imagination TechnologiesMulticore Conference Bristol 2012
Then we move to Pipes and some very clever scheduling8V01.11 nov07 Imagination TechnologiesMulticore Conference Bristol 2012
On Series 6 you can have more clusters9V01.11 nov07 Imagination TechnologiesMulticore Conference Bristol 2012
All controlled by the Micro Kernel Specialised control program running on the GPU Allows the GPU and CPU to operate with minimal synchronisation Lowers CPU load Improves performance Ensures maximum parallelisation10V01.11 nov07 Imagination TechnologiesMulticore Conference Bristol 2012
Finally, we can multi-core Unique architecture provides almostlinear performance scaling 95% efficiency in typical performanceconditions Small fixed overhead in memory footprint Increase 1% overall memory bandwidth perframe Geometry processing load-balancedacross cores Each additional core allows another tileto be processed in parallel11V01.11 nov07 Imagination TechnologiesMulticore Conference Bristol 2012
Imagination removes the complications Regardless of the number of cores, clusters, pipes, or ALUs the developersees a single system through the API and ‘Services’ layers Our software architecture works to remove much of the complexity of multithreaded programming12V01.11 nov07 Imagination TechnologiesMulticore Conference Bristol 2012
Summary GPUs are massive parallel processors PowerVR GPUs have unique scaling advantages and canparallelise even further Developers don’t need to worry about the number ofALUs, Pipes, Clusters, or Cores in a PowerVR GPU We do the worrying for you13V01.11 nov07 Imagination TechnologiesMulticore Conference Bristol 2012
Questions? www.imgtec.com
Multicore Architecture of PowerVRBob Gardner, Developer Technology Engineer24th September 2012 www.imgtec.com
Bob Gardner, Developer Technology Engineer 24th September 2012. Title: Multicore Architecture of PowerVR Author: Bob Gardner Created Date: 9/25/2012 7:02:01 AM .
to adjust the sequence of packets by using the multicore NPU. Specifically, the contributions of this paper are threefold. † First, a multicore NPU-based stream reassembly architecture is introduced. To the best of our knowl-edge, this is the first work on employing multicore NPU-based stream reassembly technology specifi-cally for NIDS .
- A performance study of AMG on a large multicore cluster with 4-socket, 16-core nodes using MPI, OpenMP, and hybrid programming; - Scheduling strategies for highly asynchronous codes on multicore platforms; - A MultiCore SUPport (MCSup) library that provides efficient support for mapping an OpenMP program onto the underlying architecture;
multicore architecture and (2) to explore software GNSS applications that are enabled by multicore processors. In-vestigating e-cient mapping of GNSS signal processing tasks to a multicore platform begins with the following top-level questions, to which this paper ofiers answers: 1. How invasive will be the changes required to map exist-
Using "—multicore" compile switch with the NVCC compiler generates C code for multi-core CPU Performance scales linearly with more cores Control numbers of cores with environment variable CUDA_NROF_CORES n NVCC --multicore C/C CUDA Application Multicore CPU C Code Multicore Optimized Application gcc / MSVC
footprint than MPI and that exploits the properties of the domain. The Multicore Asso-ciation has developed such an industry standard for multicore software development. The standard for message passing communication is called MCAPI [MCA 2011]. In this article, we provide reliability techniques for multicore software developed using MCAPI.
Multicore computer: A computer with more than one CPU. 1960- 1990: Multicore existed in mainframes and supercomputers. 1990's : Introduction of commodity multicore servers. 2000's : Multicores placed on personal computers. Soon : Everywhere except embedded systems? But switched on and off based on need: each active core burns power
This white paper is an introduction to the EMC Multicore FAST Cache technology in the VNX 2 storage systems. It describes implementation of the Multicore FAST Cache feature and provides details of using it with Unisphere and NaviSecCLI. Usage guidelines and major customer benefits are also included. March 2016 . EMC VNX2 Multicore .
NMX-C181 Materiales termoaislantes. Transmisión Térmica (aparato de placa caliente aislada). Método de Prueba NMX-C-228 Materiales Termoaislantes. Adsorción de Humedad. Método de Prueba. NMX-C-238 Materiales Termoaislantes Terminología . REVISIÓN ESPECIFICACIÓ N SELLO FIDE No. 4129 3 30 SEP 2011 HOJA FIBRAS MINERALES PARA EDIFI CACIONES 8 de 8 12.2. Otros Documentos y Normas ASTM C-167 .
