• 2019 Update 4
  • 03/20/2019
  • Public Content
Contents

Granularity

For all memory address spaces, to optimize performance, a kernel must access data in at least 32-bit quantities, from addresses that are aligned to 32-bit boundaries. A 32-bit quantity can consist of any type, for example:
  • char4s
  • ushort2s
  • ints
These data types can be accessed with identical memory performance. If possible, access up to four 32-bit quantities (
float4
,
int4
, etc) at a time to improve performance. Accessing more than four 32-bit quantities at a time may reduce performance.

Product and Performance Information

1

Performance varies by use, configuration and other factors. Learn more at www.Intel.com/PerformanceIndex.