Hello again! In the programmers guide (Version 2.0 6/7/2008) on page 67 there is a formula that calculates the number of registers per thread! At my occasion we have R=16384 and B=8 taken from specification manual! I use a T =256threads/block So the formula reduces to 8regs/thread! Is that right?! If i compile my kernerl using the --ptxas-option=-v i get that the kernel compiles to 11 registers! Should the kernel fail to load??!