cpu - Possible to write only in OpenCL? -


let i've got nice algorithm want code run on both cpus , gpus. know can target x86 opencl.

should prepare 2 versions of code (for cpus , gpus) written 1 in opencl, other in traditional way? or maybe can make 1 implementation in opencl, , run amd's sdk on machines without proper gpu? drawbacks running opencl on cpu have, compared implementation in pure c?

(note: understand need write opencl initialization , input/output in traditional way. question covers computational part of program)

you might try going down path of writing in opencl. way have 1 version of code runs on both cpu , gpu... in theory.

in practice, optimum performance might want tweak code particular hardware targeting. example, x86 cpu might benefit using vectors while nvidia gpu might not or @ (in fact different versions of hardware same manufacturer have different characteristics).

to target gpu, you'll need opencl version of algorithm anyway. when tweaking particular hardware, can go down path of using #define/#ifdef , rewrite or tweak parts of algorithm need it. may work algorithm , save duplicating whole lot of code.

a disadvantage of opencl is harder use coding or using c library. if library/algorithm else , written in opencl, forcing them include opencl libraries , have opencl runtime on system. can harder debug - no console printing (but there extensions support this) , haven't got experience opencl debuggers doubt traditional debuggers.


Comments

Post a Comment

Popular posts from this blog

c++ - Is it possible to compile a VST on linux? -

for class project i'm attempting write vst plugin backed cuda. current cuda workflow on linux box, i'd prefer compile , link there. according wikipedia , should possible (i couldn't find steinberg documentation relevant linux) can't find makefile or instructions on how build if aren't using xcode or visual studio. i'm vst 3 sdk doesn't support linux. when try compile plugin under linux, error: ./base/source/fatomic.cpp:39:30: fatal error: libkern/osatomic.h: no such file or directory this issue caused following code in "vst3 sdk/base/source/fatomic.cpp" #if mac #include <libkern/osatomic.h> #if mac_os_x_version_min_required > mac_os_x_version_10_4 #define native_atomic_type (volatile int32_t*) #else #define native_atomic_type (int32_t*) #endif #elif windows #include <windows.h> #endif but hope compiling under linux work vst sdk 2.4. reading. jvstwrapper seems run on lin...
Read more

java - Output of Eclipse is rubbish -

i want write program in eclipse language different english. when display output using system.out program, displays output correctly in console editor. when accept input console , output it, output rubbish. how can solve it. many thnaks i'm not sure if problem, have character encoding problem. make sure you're using unicode, utf-8. you can read more @ official docs converting non-unicode text .
Read more

jquery - Confused with JSON data and normal data in Django ajax request -

i read json internet still have not got grasp of it. reading article http://webcloud.se/log/ajax-in-django-with-jquery/ i not understood first part function using json def xhr_test(request, format): if request.is_ajax(): if format == 'xml': mimetype = 'application/xml' if format == 'json': mimetype = 'application/javascript' data = serializers.serialize(format, examplemodel.objects.all()) return httpresponse(data,mimetype) # if want prevent non xhr calls else: return httpresponse(status=400) my main problems are from function getting format variable does format json mean data given function json or data recived json can give me simple example ouput of function data = serializers.serialize(format, examplemodel.objects.all()) how use data when response in jquery function if don't use json in above function how input , response chnage thanks ...
Read more