cutilCheckMsg("kernel launch failure"); unknown error.

Accelerated Computing CUDA CUDA Programming and Performance
1

in my main,

dim3 dimGrid(grid_x,grid_y),dimBlock(block_x,block_y,block_z);
Kernel <<<dimGrid,dimBlock>>>(F_d,N_d,P_d,R_d,imax,jmax,kmax);
cutilCheckMsg("kernel launch failure");

then i got " kernel launch failure : unknown error

does this mean the kernel didn’t even get launched at all or it launched but got errors and quit by itself due to some errors?

any comments please…

2

in my main,

dim3 dimGrid(grid_x,grid_y),dimBlock(block_x,block_y,block_z);
Kernel <<<dimGrid,dimBlock>>>(F_d,N_d,P_d,R_d,imax,jmax,kmax);
cutilCheckMsg("kernel launch failure");

then i got " kernel launch failure : unknown error

does this mean the kernel didn’t even get launched at all or it launched but got errors and quit by itself due to some errors?

any comments please…