PTX: Difference between revisions

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The ISA to which [[CUDA]]'s nvcc compiles source code. This is JIT'd into architecture-specific machine language by the hardware driver after the CUDA runtime is used to load a PTX module. It can then be scheduled for execution on CUDA devices. From Version 2.1 of the [http://developer.download.nvidia.com/compute/cuda/3_1/toolkit/docs/ptx_isa_2.1.pdf PTX ISA Reference]:

:''PTX defines a virtual machine and ISA for general purpose parallel thread execution. PTX programs are translated at install time to the target hardware instruction set. The PTX-to-GPU translator and driver enable NVIDIA GPUs to be used as programmable parallel computers.''

All PTX instructions can be predicated. Predicated instances of the branch and call instructions are the only way to effect conditional branching.

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 The ISA to which [[CUDA]]'s nvcc compiles source code. This is JIT'd into architecture-specific machine language by the hardware driver after the CUDA runtime is used to load a PTX module. It can then be scheduled for execution on CUDA devices. From Version 2.1 of the [http://developer.download.nvidia.com/compute/cuda/3_1/toolkit/docs/ptx_isa_2.1.pdf PTX ISA Reference]:
 :''PTX defines a virtual machine and ISA for general purpose parallel thread execution. PTX programs are translated at install time to the target hardware instruction set. The PTX-to-GPU translator and driver enable NVIDIA GPUs to be used as programmable parallel computers.''
+All PTX instructions can be predicated. Predicated instances of the branch and call instructions are the only way to effect conditional branching.
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