* If there is a size discrepancy between server and client this needs to be handled in handle_file_upload()
* Setting a write lock on a read only file does not work obviously. Instead try to see if another process has a write lock and continue if not. If another process is still writing to the file there is no need to determine the size.
I.e. treat miner ASICs as a distinct processor type;
send miner_asic jobs only if the client requests them.
Note: I was planning to do this in a more general way,
in which the scheduler wouldn't have a hard-wired list of processor types.
However, that would be a large code change,
so for now I just added miner_asic to the list of processor types
(nvidia, ati, intel_gpu),
and made various changes to get things to work.
Also: in the job dispatch logic, try to send coproc jobs
before CPU jobs.
That way if e.g. there's a limit on jobs in progress,
we'll preferentially send coproc jobs.
Svyatoslav Krasnov