NVIDIA releases Pascal architecture whitepaper

Published: 21st Apr 2016, 07:15 GMT

Just a heads up to those who were waiting to learn more about Pascal, NVIDIA’s latest architecture. Each major release is usually accompanied by whitepaper that brakes down all important aspects of the new hardware. Tesla P100 launch is no exception.

NVIDIA GP100 package

Full GP100 GPU

Figure 7 shows a full GP100 GPU with 60 SM units (different products can use different configurations of GP100). The Tesla P100 accelerator uses 56 SM units

Pascal Streaming Multiprocessor

GP100’s SM incorporates 64 single-precision (FP32) CUDA Cores. In contrast, the Maxwell and Kepler SMs had 128 and 192 FP32 CUDA Cores, respectively. The GP100 SM is partitioned into two processing blocks, each having 32 single-precision CUDA Cores, an instruction buffer, a warp scheduler, and two dispatch units. While a GP100 SM has half the total number of CUDA Cores of a Maxwell SM, it maintains the same register file size and supports similar occupancy of warps and thread blocks.

FP64 Cores

Each SM in GP100 features 32 double precision (FP64) CUDA Cores, which is one-half the number of FP32 single precision CUDA Cores. A full GP100 GPU has 1920 FP64 CUDA Cores. This 2:1 ratio of single precision (SP) units to double precision (DP) units aligns better with GP100’s new datapath configuration, allowing the GPU to process DP workloads more efficiently.

L1/L2 cache

GP100 features a unified 4096 KB L2 cache that provides efficient, high speed data sharing across the GPU. In comparison, GK110’s L2 cache was 1536 KB, while GM200 shipped with 3072 KB of L2 cache. With more cache located on-chip, fewer requests to the GPU’s DRAM are needed, which reduces overall board power, reduces memory bandwidth demand, and improves performance.

NVIDIA Pascal Architecture Whitepaper (2) NVIDIA Pascal Architecture Whitepaper (1)




Comment Policy
  • Comments must be written in English.
  • Comments deemed to be spam or solely promotional in nature will be deleted. Including a link to relevant content is permitted, but comments should be relevant to the post topic.
  • Comments containing language or concepts that could be deemed offensive will be deleted. Note this may include abusive, threatening, pornographic, offensive, misleading or libelous language.
  • A failure to comply with these rules will result in a warning and, in extreme cases, a ban.
  • Please note that comments that attack or harass an individual directly will be deleted and such comments will result in a ban.
  • VideoCardz Moderating Team reserves the right to edit or delete any comments submitted to the site without notice.
  • If you have any questions about the commenting policy, please let us know through the Contact Page.
Hide Comment Policy
Comments

This website relies on third-party cookies for advertisement, comments and social media integration. Check our Privacy and Cookie Policy for details.