How to deal with a huge amount of RGB data using C++ AMP
HiI am now trying to use C++ AMP to speed up the image processing of a DirectShow filter. I read the tiling introductions and the examples but I think they are not quite suitable for what I am...
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Non busy waiting for completion of parallel_for_each
HiI am Master Student at the FHNW in Windisch (Switzerland) and am using C++ AMP for the parallelization on the GPU. Right now I am developing a heterogeneous image pipeline which uses all CPU Cores...
View ArticleC++ AMP and concurrent usage of a single accelerator_view
Hi,I have a use case where I see a significant performance benefit when using concurrent scheduling of problem chunks on the same accelerator (think PPL-pfe outside AMP-pfe, similar to using multiple...
View ArticleAMP causes blue screen and its workaround
Our engineers are testing our first AMP based application (ASM). They have encountered blue screen issue and they have found the solution or workaround. I'd like to share the solution."This blue screen...
View ArticleGlobal variables in C++ AMP
I’m trying to create a C++ AMP dll to be used from C#. The same, rather large, matrix is used for all calculation, and I would prefer to copy it to the GPU only once. In CUDA I can just use save a...
View ArticleAMD Mantle and C++ AMP?
Does anybody know if AMD's "Mantle" can/will be used somehow by the C++ AMP runtime, or is it just purely for graphics applications?-L
View ArticleOpenMP compiler bug, only x64 debug non optimized
Hi everyone,i tried to port some parallel SSE code to OpenMP (before parallelization was done using win32 thread API). Unit test work fine for win32 debug and release configuration, but while x64...
View ArticleRetrieve universal security group information of logged in AD User
Hi, I am using win32 COM API to retrieve the list of AD groups which currently logged in users are member of. However, if user is part of universal security group which is under different subdomain,...
View Articlewhy only a few tasks get scheduled?
I want to use async agent lib to implement producer consumer pattern. The producer trys to send tasks to consumers.there are one producer and ten consumers. the processing time of a consumer is a...
View Articleconcurrency task continuation
hi, i try to use concurrency task continuation as follows: #include "stdafx.h" #include "ppltasks.h" #include <iostream> int i = 0; void f() { ++i; } int _tmain(int argc, _TCHAR* argv[]) {...
View Articlewhat is THRESHOLD here?and what is the input to that THRESHOLD value here in...
my program i do it on library file so where i give the Threshold value here.. #include "removeshort.h" #include<sstream> //#include<ImageHlp.h> //#include<DbgHelp.h> //#include...
View Articlei using library file to count non printable ASCII value(0 to 32) from a text...
hi my program is find non printable ASCII value(1 to 32) and calculate count from a text like "hi<tab>this<space>my text.i'm using library file here.(visual studio...
View Articleparallel_for_each break
In a regular for loop, I can break out of the loop prematurely using break. How can I do this in a parallel_for_each?
View ArticleUnexpected C++ AMP Runtime Error output Visual Studio 2013
I am running a fresh install of Windows 8.1 with the release version of Visual Studio 2013. If I run any of the C++ AMP samples I get run time exceptions dumped to the output window.Is this a known...
View ArticleRaytracing in C++ AMP
Hi all. I have been using AMP for about a year now, and the results are nothing short of astonishing. I've seen speed improvements of anywhere from 3 to 12x just on mobile GPUs. I have asked a lot...
View ArticleFailed to map staging buffer
In vert rare cases during my testing, I got Failed to map staging buffererror from AMP. Does anyone know anything about this error? What should I look for?Cheers,Bingcai
View ArticleC++ AMP on Amazon EC2 GPU machines - no GPUs available
Amazon EC2 GPU machines support Windows Server 2008 R2. I have a machine running with the latest Windows updates installed, the latest NVidia driver installed (295.*) and the VS11 Beta plus April...
View ArticleHSA and C++ AMP
While reading a review of the AMD Kaveri chip this morning I came across the following quote:"C++ AMP was pioneered by Microsoft and the Microsoft stack is built on top of DirectCompute. DirectCompute...
View Articlehow to get previous values of the textbox?
Hi,I want to write a code in which if the calculated values present in the text box is changed then the text box should turn green if the value is increases and should turn red if the value is...
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