update the experiments config

- feat add a template in target-runner to change the problem
- loop over irace runs for each problem

eo/contrib/irace/irace-config/example.scen

@@ -63,7 +63,7 @@ targetRunner = "./target-runner"
 ## Maximum number of runs (invocations of targetRunner) that will be
 ## performed. It determines the maximum budget of experiments for the
 ## tuning.
-maxExperiments = 2000
+maxExperiments = 100000
 
 ## Maximum total execution time in seconds for the executions of
 ## targetRunner. targetRunner must return two values: cost and time.

eo/contrib/irace/irace-config/target-runner

@@ -25,7 +25,7 @@ error() {
 EXE="./fastga"
 LOG_DIR="irace_logs"
 
-FIXED_PARAMS="--problem=0"
+FIXED_PARAMS="--problem={{PROBLEM}}"
 
 CONFIG_ID=$1
 INSTANCE_ID=$2