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aj_guillon
Adept I

Meaning of VM in OpenCL Programming Guide?

Hi,

I notice that the OpenCL Programming Guide changelog indicates that the table of memory behaviour has been updated to include whether or not "VM" is enabled.  I don't know what term this refers to, and it is not defined within the guide itself.  Virtual machine?  Virtual memory?  Something else?

Thanks.

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4 Replies
nou
Exemplar

Meaning of VM in OpenCL Programming Guide?

just quick guess Virtual Memory?

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binying
Challenger

Re: Meaning of VM in OpenCL Programming Guide?

My guess is virtual memory too.

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snock
Journeyman III

Re: Meaning of VM in OpenCL Programming Guide?

I also confused about the VM, i think it should be Virtual Memory. But don't know how to disable and enable it.

I try all mem flags and can not achieve the peak bandwidth of data transfer, only about 3~6 GB/s.

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nou
Exemplar

Re: Meaning of VM in OpenCL Programming Guide?

did you look at BufferBandwith example from SDK?

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