GPU performance analyzing in WebGL
My simple WebGL (OpenGL ES) simulation for N=1024,...8192
http://www.ibiblio.org/e-notes/webgl/gpu/n-toy.html
is rather fast on Radeon HD 4870 (10^9 interactions per second) but about 10 times slower than other (OpenGL, Brook, Cuda based) realizations. Is it possible to detect the bottleneck in this 10kb script? E.g. WebGL realization or too direct algorithm. I'm collecting my "WebGL and simulations on GPU" notes at
http://www.ibiblio.org/e-notes/webgl/gpu/contents.htm