[tools] execN: backport upstream_sg improvements

upstream_sg commit: 041c06a0

[tools] execN: backport upstream_sg improvements
upstream_sg commit: 041c06a0
a620ef87 · Millian Poquet · 0d1e6420 · a620ef87 · a620ef87
Commit a620ef87 authored Jul 25, 2017 by Millian Poquet
--- a/tools/experiments/execute_instances.py
+++ b/tools/experiments/execute_instances.py
--- a/tools/experiments/execute_one_instance.py
+++ b/tools/experiments/execute_one_instance.py