boostorg / compute / 1531

84%

master: 84%

Pull #715

travis-ci

Fix write/read race bug

If you write to and read from buffer using different command queues,
you have a race condition. User expects operator= to be synchronous,
however, clEnqueueWriteBuffer call can only promises:

If blocking_write is CL_TRUE, the OpenCL implementation copies the data
referred to by ptr and enqueues the write operation in the
command-queue. The memory pointed to by ptr can be reused by the
application after the clEnqueueWriteBuffer call returns.

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