Compute Capability of Halide

[aditya4d1]

I am working on CUDA and Halide. I have compiled and ran few examples. When i opened my working directory, i found a file "kernel.ptx". I opened it and found this.

1. .version 2.0
2. .target sm_20

Does Halide support only devices with compute capability 2.0??

[abadams]

I assume sm_20 means we're using shared memory model 2.0, i.e. we have floating point atomics. Perhaps @jrk can clarify. I'm guessing this may change when we update the ptx backend to llvm 3.2

[jrk]

It requires version 2.0 or greater. It is unlikely to ever support version 1.0, without a strong and explicit demand.

As for the kernel.ptx file, it's a debug log of the generated PTX emitted by the compiler.