The cufft.h in cuda 3.2,
CUFFT_R2C = 0x2a, // Real to Complex (interleaved)
CUFFT_C2R = 0x2c, // Complex (interleaved) to Real
CUFFT_C2C = 0x29, // Complex to Complex, interleaved
CUFFT_D2Z = 0x6a, // Double to Double-Complex
CUFFT_Z2D = 0x6c, // Double-Complex to Double
CUFFT_Z2Z = 0x69 // Double-Complex to Double-Complex
there is no CUFFT_R2R.
Will it be added in the 4.0 version ?