Hi altough this can be a crazy idea, I'm posting all the bugs and issues present in current AMD,NVIDIA and Apple imp in the hope of checking for correctness of upcoming imps..
Now the imp that has less bugs is Nvidia in 195 drivers. So let's start:
Nvidia 195:
*Kernels with no parameters doesn't compile
*ATI AES sample: a&0x80->if(a>127) a=128
*Nvidia lists perf issues in Vista and Win7 with multiple GPUs
*I observe very slow speed in Vol3D demo in Win7 vs Linux
*(not OpenCL standard but others imp work)implicit conversion of uint4 to float4 and for math functions not found as hypot etc..
ATI
*No currently using Windows OpenCL ICD model
*No currently OpenGL interop, image support, doubles and getting built binaries for 4xxx and 5xxx.
*No extensions for 5xxx (atomics global,local, byte addresable, 3d image writes)
*CPU and GPU not simultaneously work
*Volatile qualifiers
*mem leaks
*uint4 and bitwise operators
bug
/tmp/OCLPevl34.cl(373): error: bad argument type to opencl convert_* function:
expected src and dst have the same number of elements
float4 f = convert_float4(((int4)1) && ((int4)0));
^
Apple
Perf issues in runtime and code generation in 10.6.2 (?) in Apple OpenCL FFT.
Thursday, 26 November 2009
Subscribe to:
Post Comments (Atom)
0 comments:
Post a Comment