Re: [Starpu-devel] Fwd: Re: [Starpu-commits] r6977 - in trunk: . src/core/perfmodel src/drivers/cuda

[Samuel Thibault <samuel.thibault@ens-lyon.org>]

Cyril Roelandt, le Fri 20 Jul 2012 15:57:35 +0200, a écrit :
> This commit breaks tools/starpu_calibrate_bus.
> oops in initialize_cuda (core/perfmodel/perfmodel_bus.c:101)... 36:
> setting the device when a process is active is not allowed

Uh. I fail to see how that is possible, except a bug in libcuda. Anyway,
as you said starpu_calibrate_bus shouldn't call starpu_init.

> About the commit log: can we call starpu_worker_get_count() and
> _starpu_get_cuda_device_count() without calling starpu_init() first ?

Worker_get_count, no, and we don't use it in bus calibration.
get_cuda_device_count it fine (just like it was before the introduction
of starpu_init() in starpu_calibrate_bus).

Samuel