I downloaded ffmpeg-2.7 release. and found qsv h264 decoder on libavcodec. so I want to try it performance on ubuntu 12.04. I use as follows steps to build qsv decoder environment, then I run qsv h264 decoder to decode one h264 local stream, it failed.
1. install mfx library
sudo make install
2. build ffmpeg-2.7 release
Can someone please straighten me out on expected clEnqueueMapBuffer overheads under Haswell?
Environment: Windows 7 sp1, VS2013, i7-4770, driver 10.18.14.4170
The Graphics Performance Analyzers team is proud to announce a new version of GPA!
This version is available today via direct download from the GPA home page.
This update includes:
- For Analyzing Windows Applications
I am building a Fortran .DLL that contains offloads to MIC.
In the project there is a module containing interfaces to non-exported subroutines and functions. mod_interfaces.f90 defining module mod_interfaces, with interfaces only.
One of the examples are
subroutine games_check(crames) !DIR$ ATTRIBUTES OFFLOAD : mic :: games_check use dyn_array_crames implicit none type(CRAMES_t) :: crames end subroutine games_check
That is in the interface file. The source file containing the subroutine has:
some time ago, memory retention between offloads on Xeon Phi in OpenMP 4.0 was supported only within a lexically structured scope ( https://software.intel.com/en-us/forums/topic/520644#comment-1796781 )
Have things changed as of Parallel Studio 2015? Can we offload data from one function and re-use from another?
The Intel® XDK Game Asset Manager provides a central place to view and render game assets. You can import certain audio and video file assets, but you need to be aware of CODEC limitations in your target environment(s).