document zero-pad size requirements
@@ -825,6 +825,9 @@ defaultProblemType = {
# - Caveats:
# - CPU reference model does not yet support zero-padding
# - Eventually leading and trailing YAML parm will be removed and instead be specified as runtime kernel parms
+ # - ZeroPad requires that the ElementEdge <= 2^32:
+ # This is SizeFree+SizeSum + Pad_Leading + PadTrailingPad + padding=GRWW for shift-pointer) bytes < 2^32
+ # Likely this is less than the standard buffer load limits (bottom-right corner of macro-tile)
# EX: ZeroPadA: [ [0,1, 2,3]] # TensorA free index 0 with sum index 1 has leading pad=2 and trailing pad=3
# Note nesting of brackets ; the parm can contain multiple padding tuples.
