If variable a is host variable and dev_a is a device (GPU) variable, to copy input from variable a to variable dev_a select correct statement:

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Q.) If variable a is host variable and dev_a is a device (GPU) variable, to copy input from variable a to variable dev_a select correct statement:

(A) memcpy( dev_a, &a, size);

(B) cudamemcpy( dev_a, &a, size, cudamemcpyhosttodevice );

(C) memcpy( (void*) dev_a, &a, size);

(D) cudamemcpy( (void*) &dev_a, &a, size, cudamemcpydevicetohost );

Correct answer : Option (B) - cudamemcpy( dev_a, &a, size, cudamemcpyhosttodevice );

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