GPU
programmingbasics
Prof. Marco BertiniCUDA: atomic
operations,privatization,
algorithmsAtomic operations
• The basics atomic operation in hardware is something like aread-modify-write operation performed by a single hardware
instruction on a memory location address• Read the old value, calculate a new value, and write the new
value to the location• The hardware ensures that no other threads can perform another
read-modify-write operation on the same location until the
current atomic op
