-----Original Message----- From: Boost [mailto:boost-bounces@lists.boost.org] On Behalf Of John Bytheway Sent: Tuesday, December 30, 2014 21:23 To: boost@lists.boost.org Subject: Re: [boost] [compute] Review
On 2014-12-29 02:01, Kyle Lutz wrote:
Currently it will just buffer the entire range into a std::vector<T> and then copy that to the device. If this is a bottleneck it could also be improved to copy the data in smaller batches. Let me know if you encounter issues with this.
Does this also work with copy_async? I presume not, because there would be troubles with the lifetime of the temporary vector...
Async host <-> device copies only exist at the low level (command_queue). They sidestep the issue by using raw pointers and size. For a summary of synchronization-related exception safety issues, see my last message on Synchronization. Matt ________________________________ This e-mail contains privileged and confidential information intended for the use of the addressees named above. If you are not the intended recipient of this e-mail, you are hereby notified that you must not disseminate, copy or take any action in respect of any information contained in it. If you have received this e-mail in error, please notify the sender immediately by e-mail and immediately destroy this e-mail and its attachments.