Hi folks, according to the reference, it should be possible to re-load the output from a built program. However, the following short code is not working ctx = cl.create_some_context(False) platform = cl.get_platforms() device = platform[0].get_devices()[0] program = cl.Program(ctx, """ __kernel void simple(__global float *in, __global float *out) { out[get_global_id(0)] = in[get_global_id(0)]; }""") program.build() binary = program.get_info(cl.program_info.BINARIES)[0] foo = cl.Program(ctx, [device], [binary]) # I cannot build ... foo.build() # ... nor call the kernel foo.simple() Is there something wrong with this code or PyOpenCL? Regards, Matthias -- Matthias Vogelgesang Public-Key: http://tinyurl.com/2qcydl