HamidFULL
13-06-2007, 22:14
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The CPU architect team takes charge of development
Larrabee which was seen as discrete GPU for a long time really is not GPU. It is メニイコア CPU which is specialized in the stream computing which processes many data in parallel. Gelsinger expresses as follows.
"Larrabee is the high-speed steel kale parallel machine. We load very many cores, our メニイコア (Many-core) become the first product "
Larrabee which adhered to x86 instruction set architecture
The largest point of Larrabee IA (x86 system) expanded instruction set architecture, it is the point which is the high parallel processor. There differs from GPU and the other stream processor of individual instruction set architecture largely.
"The core of Larrabee is IA instruction set interchangeable. This thinks that it is very important feature. However, floating point order is expanded to instruction set. It is the instruction set expansion which is specialized because of high parallel workload. In addition, cash coherency is taken in the form which extends over the core (joint ownership) it has cash. This (キャッシƒ…コヒーレンシ) when of プログラマビリティ is thought, it is very important. In addition, special use unit and I/O are loaded.
Larrabee, never, GPGPU (general purpose GPU) is not the traditional graphic pipeline in the space. General-purpose processor, in other words, it is the processor which is directed to the use where IA プログラマビリティ becomes important. But, it can answer to the workload of specification, with the expansion of instruction set, "(Gelsinger)
Like GPU, it is not the product which reforms the graphic pipeline in for general-purpose road, the fact that the approach whose is widely used is taken is Larrabee. Because of that, IA (x86 system) the rear interchangeability to instruction set architecture is taken. Starting from the IA core which is general purpose CPU, to the micro architecture which faces to the stream type computing of floating point arithmetic it is the processor which is expanded.
Actually, also discrete GPU plan of the Intel graphic core team exists to Intel. This differs Larrabee completely architecture and mounting, you say that it is discrete edition of Intel graphics. As for graphic integrated chip set of the CSI generation, because it is easy to derive discrete GPU, as for this it is the natural flow. Intel was advancing this project from the time before, but as for the concrete product road map because it is not audible, there is also a possibility of going out.
GPU the parallel processor of the approach which differs
The performance of Larrabee with graphic processing is unknown. As for graphic processing because it approaches to the execution efficiency of シェーダプログラム steadily, as for the possibility architecture of Larrabee type becoming advantage it is high. But, like rasterizing like processing and filtering and the luster operation where the functional unit which is locked completely is more effective the processing whose semi- fixed unit is effective is mainly included in the graphic pipeline. When these are processed with all processors, wastefulness increases performance/electric power mainly.
Because of that, efficiency with graphics, depending upon Larrabee how much has GPU hard, changes. Circuit scale there is also a possibility of having private hard concerning small unit.
It is clear present Larrabee not to be something which was focused to graphics, to be the architecture which approached to non graphics rather.
Source (http://pc.watch.impress.co.jp/docs/2007/0611/kaigai364.htm)
http://pc.watch.impress.co.jp/docs/2007/0611/kaigai364_05l.gif
http://pc.watch.impress.co.jp/docs/2007/0611/kaigai364_06l.gif
http://pc.watch.impress.co.jp/docs/2007/0611/kaigai364_08l.gif
http://pc.watch.impress.co.jp/docs/2007/0611/kaigai364_07l.gif
http://pc.watch.impress.co.jp/docs/2007/0611/kaigai364_04l.gif
The CPU architect team takes charge of development
Larrabee which was seen as discrete GPU for a long time really is not GPU. It is メニイコア CPU which is specialized in the stream computing which processes many data in parallel. Gelsinger expresses as follows.
"Larrabee is the high-speed steel kale parallel machine. We load very many cores, our メニイコア (Many-core) become the first product "
Larrabee which adhered to x86 instruction set architecture
The largest point of Larrabee IA (x86 system) expanded instruction set architecture, it is the point which is the high parallel processor. There differs from GPU and the other stream processor of individual instruction set architecture largely.
"The core of Larrabee is IA instruction set interchangeable. This thinks that it is very important feature. However, floating point order is expanded to instruction set. It is the instruction set expansion which is specialized because of high parallel workload. In addition, cash coherency is taken in the form which extends over the core (joint ownership) it has cash. This (キャッシƒ…コヒーレンシ) when of プログラマビリティ is thought, it is very important. In addition, special use unit and I/O are loaded.
Larrabee, never, GPGPU (general purpose GPU) is not the traditional graphic pipeline in the space. General-purpose processor, in other words, it is the processor which is directed to the use where IA プログラマビリティ becomes important. But, it can answer to the workload of specification, with the expansion of instruction set, "(Gelsinger)
Like GPU, it is not the product which reforms the graphic pipeline in for general-purpose road, the fact that the approach whose is widely used is taken is Larrabee. Because of that, IA (x86 system) the rear interchangeability to instruction set architecture is taken. Starting from the IA core which is general purpose CPU, to the micro architecture which faces to the stream type computing of floating point arithmetic it is the processor which is expanded.
Actually, also discrete GPU plan of the Intel graphic core team exists to Intel. This differs Larrabee completely architecture and mounting, you say that it is discrete edition of Intel graphics. As for graphic integrated chip set of the CSI generation, because it is easy to derive discrete GPU, as for this it is the natural flow. Intel was advancing this project from the time before, but as for the concrete product road map because it is not audible, there is also a possibility of going out.
GPU the parallel processor of the approach which differs
The performance of Larrabee with graphic processing is unknown. As for graphic processing because it approaches to the execution efficiency of シェーダプログラム steadily, as for the possibility architecture of Larrabee type becoming advantage it is high. But, like rasterizing like processing and filtering and the luster operation where the functional unit which is locked completely is more effective the processing whose semi- fixed unit is effective is mainly included in the graphic pipeline. When these are processed with all processors, wastefulness increases performance/electric power mainly.
Because of that, efficiency with graphics, depending upon Larrabee how much has GPU hard, changes. Circuit scale there is also a possibility of having private hard concerning small unit.
It is clear present Larrabee not to be something which was focused to graphics, to be the architecture which approached to non graphics rather.
Source (http://pc.watch.impress.co.jp/docs/2007/0611/kaigai364.htm)