* [02b] [12b] [22b]
*
* COMPUTATION PHASE 0 (a)
- * Step 0: rank r sends block ra to rank (r+1) and receives bloc (r-1)a
+ * Step 0: rank r sends block ra to rank (r+1) and receives block (r-1)a
* from rank (r-1) [with wraparound].
* # 0 1 2
* [00a] [00a+10a] [20a]
* [22a+02a] [12a] [22a]
* [02b] [12b] [22b]
*
- * Step 1: rank r sends block (r-1)a to rank (r+1) and receives bloc
+ * Step 1: rank r sends block (r-1)a to rank (r+1) and receives block
* (r-2)a from rank (r-1) [with wraparound].
* # 0 1 2
* [00a] [00a+10a] [00a+10a+20a]
* [02b] [12b] [22b]
*
* COMPUTATION PHASE 1 (b)
- * Step 0: rank r sends block rb to rank (r+1) and receives bloc (r-1)b
+ * Step 0: rank r sends block rb to rank (r+1) and receives block (r-1)b
* from rank (r-1) [with wraparound].
* # 0 1 2
* [00a] [00a+10a] [20a]
* [22a+02a] [12a] [22a]
* [22b+02b] [12b] [22b]
*
- * Step 1: rank r sends block (r-1)b to rank (r+1) and receives bloc
+ * Step 1: rank r sends block (r-1)b to rank (r+1) and receives block
* (r-2)b from rank (r-1) [with wraparound].
* # 0 1 2
* [00a] [00a+10a] [00a+10a+20a]