Forum Discussion

FSamb's avatar
FSamb
Icon for New Contributor rankNew Contributor
7 years ago

Test kernel that uses IO channel reads from Global Memory more than expected

What kernel does is just read from Global Memory, then write the same data to write IOchannel. Since reads from GM always has extra reads, it affects the behavior of the write to IO channel.
FSamb's avatar
FSamb
Icon for New Contributor rankNew Contributor
7 years ago

Forgot to ask the question. Do you have any known issue with implementing IO channel? The kernel seems to do some prefetching of 4 extra bursts of data. Each burst count is 16. Data width is 512b. Total of 4KB extra read.