[Starpu-devel] How to get a rough completion estimate ?

[Benoît Lizé <benoit.lize@gmail.com>]

Hello,

We are using StarPU in a shared-memory environment, and are looking to provide some kind of rough progression estimate.

We use the implicit data dependencies, and perform all the insert_task() calls at the start, followed by starpu_task_wait_for_all(). In particular, no task is inserted by another task, no STARPU_DATA_ACQUIRE calls are done, and no synchronous tasks.

We would like to have a rough progress estimate during the execution of the tasks. Something like the number of tasks remaining would be great, even if it is slightly inaccurate, with a low resolution.

Looking at the documentation (starpu 1.0.4), I haven't found an obvious way to do that. We would like to provide the output on stdout (or something similar), without requiring the end-user to have StarPU-top and without fxt support.

Is there a way to achieve this ? If not, what would you suggest as an alternative ? We could implement an atomic counter ourselves, but there might be a better solution that you are aware of.

Thank you,

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Benoît Lizé