gpucoder.atomicSub
Atomically subtract a specified value from a variable in global or shared memory
Since R2021b
Description
[A,oldA] = gpucoder.atomicSub(
subtracts A
,B
)B
from the value of A
in global or shared
memory and writes the result back into A. The operation is atomic in a sense that the entire
read-modify-write operation is guaranteed to be performed without interference from other
threads. The order of the input and output arguments must match the syntax provided.
Examples
Input Arguments
Limitations
Function handle input to the
gpucoder.stencilKernel
pragma cannot contain calls to atomic functions. For example,out1 = gpucoder.stencilKernel(@myAtomicSub,A,[3 3],'same',B);
Version History
Introduced in R2021b