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seen_barrier = False
for sched_item in knl.schedule:
if isinstance(sched_item, RunInstruction):
if sched_item.insn_id == id1:
watch_for_barrier = True
elif sched_item.insn_id == id2:
assert watch_for_barrier
assert seen_barrier
return
if isinstance(sched_item, Barrier):
if watch_for_barrier:
seen_barrier = True
raise RuntimeError("id2 was not seen")
def test_barrier_insertion_near_top_of_loop():
knl = lp.make_kernel(
"{[i,j]: 0 <= i,j < 10 }",
"""
for i
<>a[i] = i {id=ainit}
for j
<>t = a[(i + 1) % 10] {id=tcomp}
<>b[i,j] = a[i] + t {id=bcomp1}
b[i,j] = b[i,j] + 1 {id=bcomp2}
end
end
""",
seq_dependencies=True)
knl = lp.tag_inames(knl, dict(i="l.0"))
knl = lp.set_temporary_scope(knl, "a", "local")
knl = lp.set_temporary_scope(knl, "b", "local")
knl = lp.get_one_scheduled_kernel(lp.preprocess_kernel(knl))
print(knl)
assert_barrier_between(knl, "ainit", "tcomp")
assert_barrier_between(knl, "tcomp", "bcomp1")
assert_barrier_between(knl, "bcomp1", "bcomp2")
if __name__ == "__main__":
if len(sys.argv) > 1:
exec(sys.argv[1])
else:
from py.test.cmdline import main
main([__file__])