![]() On the GP100 1 SM combines 64 single-precision (FP32) shader processors and also 32 double-precision (FP64) providing a 2:1 ratio of single- to double-precision throughput.On Maxwell 1 SM combines 128 single-precision (FP32) shader processors.On Kepler 1 SM combines 192 single-precision (FP32) shader processors and also 64 double-precision (FP64) units (at least the GK110 GPUs).On Fermi 1 SM combines 32 single-precision (FP32) shader processors.On Tesla 1 SM combines 8 single-precision (FP32) shader processors.4 SIMD Vector Units (each 16-lane wide)= 64), Nvidia (regularly calling shader processors "CUDA cores") experimented with very different numbers: While all CU versions consist of 64 shader processors (i.e. What AMD calls a CU (compute unit) can be compared to what Nvidia calls an SM (streaming multiprocessor). An SMP encompasses 128 single-precision ALUs ("CUDA cores") on GP104 chips and 64 single-precision ALUs on GP100 chips. Streaming Multiprocessor "Pascal" Ī "Streaming Multiprocessor" corresponds to AMD's Compute Unit. For the GP104 chips, a GPC encompasses 5 SMs. Overview Graphics Processor Cluster Ī chip is partitioned into Graphics Processor Clusters (GPCs). Therefore the driver enables the expensive instruction-level preemption for these tasks. Compute tasks get thread-level or instruction-level preemption, because they can take longer times to finish and there are no guarantees on when a compute task finishes. In graphics tasks, the driver restricts preemption to the pixel-level, because pixel tasks typically finish quickly and the overhead costs of doing pixel-level preemption are lower than instruction-level preemption (which is expensive). ![]() NVENC HEVC Main10 10bit hardware encoding.HDCP 2.2 support for 4K DRM protected content playback and streaming (Maxwell GM200 and GM204 lack HDCP 2.2 support, GM206 supports HDCP 2.2).PureVideo Feature Set H hardware video decoding HEVC Main10(10bit), Main12(12bit) and VP9 hardware decoding.Enhanced SLI Interface - SLI interface with higher bandwidth compared to the previous versions.Fourth generation Delta Color Compression.Simultaneous Multi-Projection - generating multiple projections of a single geometry stream, as it enters the SMP engine from upstream shader stages.GDDR5X - new memory standard supporting 10Gbit/s data rates, updated memory controller.Īrchitectural improvements of the GP104 architecture include the following: Instruction-level and thread-level preemption.Nvidia therefore has safely enabled asynchronous compute in Pascal's driver. This allows the scheduler to dynamically adjust the amount of the GPU assigned to multiple tasks, ensuring that the GPU remains saturated with work except when there is no more work that can safely be distributed to distribute. Dynamic load balancing scheduling system.More registers - twice the amount of registers per CUDA core compared to Maxwell.16-bit ( FP16) floating-point operations (colloquially "half precision") can be executed at twice the rate of 32-bit floating-point operations ("single precision") and 64-bit floating-point operations (colloquially "double precision") executed at half the rate of 32-bit floating point operations.Allows much higher transfer speeds than those achievable by using PCI Express estimated to provide between 80 and 200 GB/s. ![]()
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