diff -Nru parmap-1.1.1/debian/changelog parmap-1.1.1/debian/changelog
--- parmap-1.1.1/debian/changelog	2020-02-14 13:32:03.000000000 +0000
+++ parmap-1.1.1/debian/changelog	2020-02-15 09:46:18.000000000 +0000
@@ -1,3 +1,10 @@
+parmap (1.1.1-2) unstable; urgency=medium
+
+  * Do not run tests that are too heavy for buildds
+  * Reduce size of remaining tests so that they fit on 32 bit machines
+
+ -- Stéphane Glondu <glondu@debian.org>  Sat, 15 Feb 2020 10:46:18 +0100
+
 parmap (1.1.1-1) unstable; urgency=medium
 
   * Team upload
diff -Nru parmap-1.1.1/debian/patches/0001-Do-not-run-tests-that-are-too-heavy-for-buildds.patch parmap-1.1.1/debian/patches/0001-Do-not-run-tests-that-are-too-heavy-for-buildds.patch
--- parmap-1.1.1/debian/patches/0001-Do-not-run-tests-that-are-too-heavy-for-buildds.patch	1970-01-01 00:00:00.000000000 +0000
+++ parmap-1.1.1/debian/patches/0001-Do-not-run-tests-that-are-too-heavy-for-buildds.patch	2020-02-15 09:46:18.000000000 +0000
@@ -0,0 +1,24 @@
+From: Stephane Glondu <steph@glondu.net>
+Date: Sat, 15 Feb 2020 10:16:22 +0100
+Subject: Do not run tests that are too heavy for buildds
+
+---
+ tests/dune | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/tests/dune b/tests/dune
+index 452ed17..8dcc4d1 100644
+--- a/tests/dune
++++ b/tests/dune
+@@ -6,9 +6,9 @@
+  (libraries parmap))
+ 
+ (tests
+- (names floatscale simplescale simplescale_array simplescalefold
++ (names floatscale simplescalefold
+    simplescalemapfold)
+- (modules floatscale simplescale simplescale_array simplescalefold
++ (modules floatscale simplescalefold
+    simplescalemapfold)
+  (flags
+   (:standard -w -35-27))
diff -Nru parmap-1.1.1/debian/patches/series parmap-1.1.1/debian/patches/series
--- parmap-1.1.1/debian/patches/series	1970-01-01 00:00:00.000000000 +0000
+++ parmap-1.1.1/debian/patches/series	2020-02-15 09:46:18.000000000 +0000
@@ -0,0 +1 @@
+0001-Do-not-run-tests-that-are-too-heavy-for-buildds.patch
diff -Nru parmap-1.1.1/debian/rules parmap-1.1.1/debian/rules
--- parmap-1.1.1/debian/rules	2020-02-14 13:32:03.000000000 +0000
+++ parmap-1.1.1/debian/rules	2020-02-15 09:46:18.000000000 +0000
@@ -13,7 +13,7 @@
 
 override_dh_auto_test:
 ifeq (,$(filter nocheck,$(DEB_BUILD_OPTIONS)))
-	dune runtest -p parmap
+	nData=1000 dune runtest -p parmap -j 1 --verbose
 endif
 
 override_dh_auto_install: