A simple kernel for adding two integers: __global__ void add( int *a, int *b, int *c ) { *c = *a + *b; } where __global__ is a CUDA C keyword which indicates that:

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add() will execute on device, add() will be called from host

A simple kernel for adding two integers: global void add( int a, int b, int c ) { c = a + b; } where global is a CUDA C keyword which indicates that:

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