Re: [Starpu-devel] Starpu stats about disk, OOC, and swapping

[Samuel Thibault <samuel.thibault@inria.fr>]

Amani Alonazi, le lun. 14 janv. 2019 21:24:33 +0300, a ecrit:
> Hopefully last question :-) I'm using STARPU_DISK_SWAP_BACKEND=unistd. How 
> can
> I analyze how much data transferred to disk during OOC computation? Shall I
> assume that anything exceeds the sustained BW that it runs at  the sustained
> BW?
> 
> I clearly notice the extra time required in executing each tasks with big/
> smaller STARPU_LIMIT_CPU_MEM. I just want to quantify the amount of 
> transfer in
> /out to disk.

I'm not sure which precise information do you want.  Do you mean you
want to know *during the execution* the amount of data transferred so
far?  We can easily add a function to get this. If you want to know for
the overall execution, it's the second column in

Data transfer statistics:
*************************
        0 -> 1  256292.63 MB    134.42MB/s      (transfers : 946 - avg 270.92 
MB)

Samuel