Update docs/understand/programming_model.rst

Co-authored-by: Leo Paoletti <[email protected]>

Author: neon60

.wordlist.txt

@@ -9,6 +9,7 @@ AXPY
 asm
 Asynchronicity
 Asynchrony
+asynchrony
 backtrace
 bfloat
 Bitcode
@@ -93,7 +94,6 @@ iteratively
 Lapack
 latencies
 libc
-libhipcxx
 libstdc
 lifecycle
 linearizing
@@ -176,6 +176,7 @@ ULP
 ULPs
 unintuitive
 UMM
+uncoalesced
 unmap
 unmapped
 unmapping

docs/data/understand/programming_model/cpu-gpu-comparison.drawio

@@ -0,0 +1,61 @@
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