gpucoder.atomicMax
Atomically find the maximum between a specified value and a variable in global or shared memory
Since R2021b
Description
[A,oldA] = gpucoder.atomicMax(
compares A
,B
)B
to the value of A
in global or shared
memory and writes the max(A,B)
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(@myAtomicMax,A,[3 3],'same',B);
Version History
Introduced in R2021b