C++amp Acceleration Settings

Reference from: https://msdn.microsoft.com/en-us/library/hh873132.aspx

1#include <amp.h>2#include <iostream>3 4 using namespaceConcurrency;5 6 //Default acceleration Device7 voiddefault_properties ()8 {9 accelerator DEFAULT_ACC;TenStd::wcout << Default_acc.device_path <<"\ n"; OneStd::wcout << default_acc.dedicated_memory <<"\ n"; A } -  - //List all acceleration devices the voidlist_all_accelerators () - { -Std::vector<accelerator> ACCs =Accelerator::get_all (); -      for(inti =0; I < accs.size (); i++) +     { -Std::wcout << Accs[i].device_path <<"\ n"; +Std::wcout << accs[i].dedicated_memory <<"\ n"; AStd::wcout << (accs[i].supports_cpu_shared_memory? at             "CPU shared Memory:true":"CPU shared Memory:false") <<"\ n"; -Std::wcout << (accs[i].supports_double_precision?  -             "Double Precision:true":"Double Precision:false") <<"\ n"; -Std::wcout << (accs[i].supports_limited_double_precision?  -             "Limited Double Precision:true":"Limited Double Precision:false") <<"\ n"; -Std::wcout << accs[i].description <<"\n\n\n"; in     } - } to  + //Select the maximum acceleration device - voidpick_with_most_memory () the { *Std::vector<accelerator> ACCs =Accelerator::get_all (); $Accelerator Acc_chosen = accs[0];Panax Notoginseng      for(inti =0; I < accs.size (); i++) -     { the         if(Accs[i].dedicated_memory >acc_chosen.dedicated_memory) +         { AAcc_chosen =Accs[i]; the         } +     } -  $Std::wcout <<"The accelerator with the most memory is" $<< Acc_chosen.device_path <<"\ n" -<< acc_chosen.dedicated_memory <<". \ n"; - } the  - //shared memory with CPUWuyi voidsharedmemory () the { -Accelerator ACC =Accelerator (accelerator::d efault_accelerator); Wu  -     //Early out if the default accelerator doesn ' t support shared memory About     if(!acc.supports_cpu_shared_memory) $     { -Std::cout <<"The default accelerator does not support shared memory"<<Std::endl; -         return; -     } A  +     //Override The default CPU access type the Acc.set_default_cpu_access_type (access_type_read_write); -  $     //Create an accelerator_view from the default acclerator. the the     //Accelerator_view reflects the Default_cpu_access_type of the the     //Accelerator It ' s associated with. theAccelerator_view Acc_v =Acc.default_view; the } -  in //Select an acceleration device the BOOLPick_accelerator () the { AboutStd::vector<accelerator> ACCs =Accelerator::get_all (); the accelerator Chosen_one; the  theAuto result = Std::find_if (Accs.begin (), Accs.end (), [] (Constaccelerator&ACC) +     { -         return!acc.is_emulated && acc.supports_double_precision &&!Acc.has_display; the     });Bayi  the     if(Result! =accs.end ()) the     { -Chosen_one = *(result); -     } the  theStd::wcout << chosen_one.description <<Std::endl; the  the     BOOLSuccess =Accelerator::set_default (chosen_one.device_path); -      the     returnsuccess; the } the 94 voidMain () the { the default_properties (); the     //list_all_accelerators ();98     //pick_with_most_memory (); About     //sharedmemory (); - 101 pick_accelerator ();102}

C++amp Acceleration Settings