Cleanup/getoncpu flush

This PR removes:

• RUNTIME_desc_getoncpu[_async]() functions
• MORSE_TASK_flush_[all|desc|data]( options, ... ) functions
• MORSE_Desc_Getoncpu()

And adds:

• RUNTIME_desc_flush( desc, sequence) that flushes and brings back to cpu asynchronously a full descriptor
• RUNTIME_data_flush( sequence, A, m, n) that flushes the piece of data A(m,n) and brings it back to the cpu if needed.
• RUNTIME_flush() that flushes all caches, but should be useless as we need to flush all descriptors used in the algorithms.
• MORSE_Desc_Flush( desc, sequence) to replace MORSE_Desc_Getoncpu( desc ) that was synchronous

All algorithms have been updated to use those new functions.

@furmento, @thibault, @fpruvost, @agullo if you can have a quick and careful look that would be nice. Thanks :).

changed the description

added 1 commit

• 73e8090f - Rename funciton in quark

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added 12 commits

• 7761fbae - 1 commit from branch solverstack:master
• 65e547f7 - CLeanup those comment lines that messes the indentation
• a332a029 - Indent build
• b0abd27f - Change the getoncpu for the async version
• 45327348 - Reorder getoncpu async
• 0a0b856d - Silent warning about cuda registration when no GPUs are involved
• 522ed2ef - Move starpu specific function to detect cached data to an inline function in header file
• 8c7df755 - Keep cleaning the flushing methods
• 410273ea - Cleanup comments
• 3686303c - Make sure Quark compiles too
• 2232b696 - Minor fixes that wen through the sed
• 22c70bdc - Rename funciton in quark

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That looks good to me!

added 1 commit

• 4387fb3c - Fix indentation to regenerate a build

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merged

mentioned in commit 99b1c7ee

mentioned in issue #59 (closed)