Changes between Version 1 and Version 2 of CreditNotes

Timestamp:

Oct 12, 2009, 11:57:33 AM (15 years ago)

Author:

davea

Comment:

--

CreditNotes

@@ -14 +14 @@
  * Two projects and two hosts
  * Host A runs both projects' jobs in 1 hour.
- * Host B runs project 1's jobs in 1 hour, and project 2's job in 2 hours.
+ * Host B runs project 1's jobs in 1 hour, and project 2's job in 10 hours.
 
 Project neutrality says that both projects must grant host A the same credit per job.
@@ -22 +22 @@
 So the two goals are inconsistent; we can't satisfy them both.
 
+== Scenarios ==
+
+Extending the above example:
+suppose
+ * the 2 hosts both have the same peak FP speed (say 1 GFLOPS).
+ * project 1's app runs with 100% efficiency on both hosts
+ * project 2's app runs with 100% efficiency on host A
+   and 10% efficiency on host B
+   (says, because of its memory access pattern)
+
+