add new experiment script pathfinder-plot

exp/pathfinder-plot.sh

@@ -0,0 +1,39 @@
+#!/bin/bash
+
+set -e
+
+BLKY_FLAGS="${BLKY_FLAGS}"
+
+
+echo "this will take 4 hours" > /dev/stderr
+
+function count_bits() {
+  err=$((0))
+  for i in $(seq 0 7); do
+    if [[ $(($1 & (1 << $i))) > 0 ]]; then
+      err=$((err + 1))
+    fi
+  done
+  echo $err
+}
+function proc() {
+  err=$((0))
+  for i in $(seq 0 255); do
+    v=$(printf "%02x" ${i} |  \
+      ${BLKY} ${BLKY_FLAGS} --from bytes --stdin-hex --to feature-probs --stdout   \
+           --probgen-false-positive $(printf "0.%02d" ${1})  \
+           --probgen-false-negative $(printf "0.%02d" ${2}) |  \
+      ${BLKY} ${BLKY_FLAGS}  --from feature-probs --stdin --to bytes --stdout-hex)
+      err=$((err + $(count_bits $(($i ^ 16#$v)))))
+  done
+  printf "0.%02d 0.%02d %d\n" ${fn} ${fp} ${err}
+}
+
+for fn in $(seq 0 50); do
+  for fp in $(seq 0 50); do
+    until [ "$( jobs -lr 2>&1 | wc -l)" -lt 4 ]; do
+      sleep 0.5
+    done
+    proc ${fp} ${fn} &
+  done
+done