連結已複製
Dear Sergey,
I repeat my readings of your posts, that shows P4 is much, much faster then a modern IB CPU:
Your very first post: 04/08/2016, 10:26 MinGW C++ compiler v5.1.0 - Release - 32-bit ( LPS: IKJ ) - CPU P4 32-bit Windows XP ]
> Application - MgwTestApp - WIN32_MGW ( 32-bit ) - Release
> Tests: Start
> Test1099 Start <
> Matrix A, B and C Sizes : 1024 x 1024
> Loop Processing Schema ( LPS ): IKJ
> Loop Blocking Divider : 1
> Sub-Test 1.1 - MxMultA1 - Classic 2D
> LBOT size: N/A
> Completed: 2.75000 secs
> Sub-Test 1.2 - MxMultA2 - Classic 2D LBOT
> LBOT size: 1024x1024 elements
> Completed: 2.79700 secs
Your second post: 04/08/2016 10:27 MinGW C++ compiler v5.1.0 - Release - 64-bit ( LPS: IJK ) - CPU IB 64-bit Windows 7 ]
> Application - MgwTestApp - WIN64_MGW ( 64-bit ) - Release
> Tests: Start
> Test1099 Start <
> Matrix A, B and C Sizes : 1024 x 1024
> Loop Processing Schema ( LPS ): IJK
> Loop Blocking Divider : 1
> Sub-Test 1.1 - MxMultA1 - Classic 2D
> LBOT size: N/A
> Completed: 8.92300 secs
> Sub-Test 1.2 - MxMultA2 - Classic 2D LBOT
> LBOT size: 1024x1024 elements
> Completed: 8.98600 secs
The way I read it, the P4 calculated it in 2.75 seconds, while the i-7 calculated it in 8.92 seconds, using the same compiler and the same algorithm.
