What does gld and gst mean in the visual profiler ?


Cuda visual profiler gives me rows of gst 32b, gst 64b and gst 128b, and of gld 32b, gld 64b and gld 128b.

My question is : what is the “meaning” of gst and gld ? the 32/64/128b suffix is linked to the size of the transaction.
I’m suspecting that one is for reading transaction, the other one is for writing, but I’m not sure. And which one is which ?

Thanks for your help !

gld = global load, gst = global store.

Thanks !