Changes between Version 3 and Version 4 of UGT2011

Timestamp:

Nov 5, 2014 9:32:44 AM (11 years ago)

Author:

nakasato

Comment:

--

UGT2011

@@ -3 +3 @@
 =  Y.Suzuki =
 == Fast N-Body Calculation Implemented by OpenCL with Vectorization ==
+I compared the performance of N-body simulations
+on CPU and GPU with a several optimization techniques.
+Each program is written in OpenCL which
+standardizes APIs for GPU, and an important optimization
+technique in OpenCL is a vectorization. It
+enables us to utilize multiple variables as one variable.
+As a result, the program which utilized 4 variables as
+one was the best performance.
+I optimized the program using shuffle function. I found
+the calculation of N-body problem using shuffle function
+was about 1.3 times faster than without it. I also
+found Intel SDK had an ability to efficiently vectorize
+the kernel program.
+
+
+
 
 = K.Kamijima =