Hi,
I instrumented your Pipeline program to print when the updates
(doSomething) from case 2 of the switch and the printing from case 3 of the
switch started and stopped. It looks to me like your synchronization logic
is buggy; the updates to the arrays are happening concurrently with the
values being printed. The instrumented version is attached. Below is a
typical output.(See attached file: Pipeline.x10)--dave [dgrove@linchen myTests]$ ./a.out Begin PRINTING a3 at stage 3 Begin update of a3 (local(0) = 4) at stage 2 0 0 0 4 4 4 4 4 4 4 End update of a3 (a3()(0) = 4) at stage 2 Done PRINTING a3 at stage 3 Begin update of a4 (local(0) = 9) at stage 3 Begin PRINTING a4 at stage 4 9 9 9 9 9 9 9 9 9 9 Done PRINTING a4 at stage 4 End update of a4 (a4()(0) = 9) at stage 3 Begin PRINTING a3 at stage 5 4 4 Begin update of a3 (local(0) = 16) at stage 4 4 16 16 16 16 End update of a3 (a3()(0) = 16) at stage 4 16 16 16 Done PRINTING a3 at stage 5 Begin PRINTING a4 at stage 6 9 9 9 9 9 9 9 9 9 9 Done PRINTING a4 at stage 6 Begin update of a4 (local(0) = 25) at stage 5 End update of a4 (a4()(0) = 25) at stage 5 Begin PRINTING a3 at stage 7 16 16 16 16 16 16 16 16 16 16 Done PRINTING a3 at stage 7 Begin update of a3 (local(0) = 36) at stage 6 End update of a3 (a3()(0) = 36) at stage 6 Begin PRINTING a4 at stage 8 25 25 25 25 25 25 25 25 25 25 Done PRINTING a4 at stage 8 Begin update of a4 (local(0) = 49) at stage 7 End update of a4 (a4()(0) = 49) at stage 7 Begin PRINTING a3 at stage 9 36 36 36 36 36 36 36 36 36 36 Done PRINTING a3 at stage 9 Begin update of a3 (local(0) = 64) at stage 8 End update of a3 (a3()(0) = 64) at stage 8 Begin PRINTING a4 at stage 10 Begin update of a4 (local(0) = 81) at stage 9 49 End update of a4 (a4()(0) = 81) at stage 9 81 81 81 81 81 81 81 81 81 Done PRINTING a4 at stage 10 Begin PRINTING a3 at stage 11 64 64 64 64 64 64 64 Begin update of a3 (local(0) = 100) at stage 10 64 64 64 Done PRINTING a3 at stage 11 End update of a3 (a3()(0) = 100) at stage 10
Pipeline.x10
Description: Binary data
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