From d6e0011f34a4a78e4d8e7e69e5a92a73a0ac725b Mon Sep 17 00:00:00 2001
From: Andreas Kloeckner <inform@tiker.net>
Date: Thu, 13 Aug 2015 10:26:11 -0500
Subject: [PATCH] Better scheduler error reporting around loop_insn_dep_map
---
loopy/schedule.py | 15 +++++++++++++--
1 file changed, 13 insertions(+), 2 deletions(-)
diff --git a/loopy/schedule.py b/loopy/schedule.py
index 9766f34fc..d9a3676d2 100644
--- a/loopy/schedule.py
+++ b/loopy/schedule.py
@@ -655,7 +655,16 @@ def generate_loop_schedules_internal(
not sched_state.loop_insn_dep_map.get(iname, set())
<= sched_state.scheduled_insn_ids):
if debug_mode:
- print("scheduling %s prohibited by loop dependency map" % iname)
+ print(
+ "scheduling {iname} prohibited by loop dependency map "
+ "(needs '{needed_insns})'"
+ .format(
+ iname=iname,
+ needed_insns=", ".join(
+ sched_state.loop_insn_dep_map.get(iname, set())
+ -
+ sched_state.scheduled_insn_ids)))
+
continue
iname_home_domain = kernel.domains[kernel.get_home_domain_index(iname)]
@@ -1269,7 +1278,9 @@ def generate_loop_schedules(kernel, debug_args={}):
# reverse=False, kind="global")
# for sched_item in gen_sched:
- # if isinstance(sched_item, Barrier) and sched_item.kind == "global":
+ # if (
+ # isinstance(sched_item, Barrier)
+ # and sched_item.kind == "global"):
# raise LoopyError("kernel requires a global barrier %s"
# % sched_item.comment)
--
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