more recent polyml-test version;
afford more heap by default: all platforms are now 64bit and presumably have sufficient memory;

--- a/Admin/components/components.sha1	Mon Nov 06 17:21:32 2017 +0100
+++ b/Admin/components/components.sha1	Tue Nov 07 10:22:10 2017 +0100
@@ -161,6 +161,7 @@
 2b7c02b67feb2f44dda6938a7244f4257e7c580c  polyml-test-905dae2ebfda.tar.gz
 b4ceeaac47f3baae41c2491a8368b03217946166  polyml-test-e7a662f8f9c4.tar.gz
 609c7d09d3ed01156ff91261e801e2403ff93729  polyml-test-e8d82343b692.tar.gz
+a619177143fea42a464f49bb864665407c07a16c  polyml-test-fb4f42af00fa.tar.gz
 53123dc011b2d4b4e8fe307f3c9fa355718ad01a  postgresql-42.1.1.tar.gz
 3a5d31377ec07a5069957f5477a4848cfc89a594  postgresql-42.1.4.tar.gz
 f132329ca1045858ef456cc08b197c9eeea6881b  postgresql-9.4.1212.tar.gz

--- a/Admin/components/main	Mon Nov 06 17:21:32 2017 +0100
+++ b/Admin/components/main	Tue Nov 07 10:22:10 2017 +0100
@@ -10,7 +10,7 @@
 jortho-1.0-2
 kodkodi-1.5.2
 nunchaku-0.5
-polyml-test-79534495ee94
+polyml-test-fb4f42af00fa
 postgresql-42.1.4
 scala-2.12.4
 smbc-0.4.1

--- a/Admin/polyml/settings	Mon Nov 06 17:21:32 2017 +0100
+++ b/Admin/polyml/settings	Tue Nov 07 10:22:10 2017 +0100
@@ -49,19 +49,19 @@
       case "$ML_PLATFORM" in
         x86_64-windows)
           POLYML_EXE="$ML_HOME/poly.exe"
-          ML_OPTIONS="-H 1000 --codepage utf8"
+          ML_OPTIONS="--minheap 2000 --codepage utf8"
           ;;
         x86-windows)
           POLYML_EXE="$ML_HOME/poly.exe"
-          ML_OPTIONS="-H 500 --codepage utf8"
+          ML_OPTIONS="--minheap 1000 --codepage utf8"
           ;;
         x86_64-*)
           POLYML_EXE="$ML_HOME/poly"
-          ML_OPTIONS="-H 1000"
+          ML_OPTIONS="--minheap 2000"
           ;;
         *)
           POLYML_EXE="$ML_HOME/poly"
-          ML_OPTIONS="-H 500"
+          ML_OPTIONS="--minheap 1000"
           ;;
       esac