PTX target for LLVM?

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1

Hi

I am interested to know: are there are any LLVM targets in the works
for Nvidia's PTX ISA?

Also if anyone knows about Ocelot (a project done by some students at
my school): it does the opposite of what I am trying to do (translates
PTX to LLVM IR to run Cuda kernels on the CPU).

Thanks in advance.

-Puyan

2

I don't know of any, but that would be a great project if the nvidia toolchain is sufficiently available for it to be useful to open source folks.

-Chris

3

Hey,

Chris Lattner schrieb:

Hi

I am interested to know: are there are any LLVM targets in the works
for Nvidia's PTX ISA?

Also if anyone knows about Ocelot (a project done by some students at
my school): it does the opposite of what I am trying to do (translates
PTX to LLVM IR to run Cuda kernels on the CPU).

I don't know of any, but that would be a great project if the nvidia toolchain is sufficiently available for it to be useful to open source folks.

Helge Rhodin, a student at Saarland University, has already written a PTX backend for LLVM as part of his bachelor's thesis. We currently use it for a deferred shading system of a rasterizer.
The plan is to reintegrate it into the LLVM trunk, but we have not yet made any steps into this direction.

Best regards,
Ralf