From 091f4dca23218b21e538248736fbcf97c1b9e715 Mon Sep 17 00:00:00 2001
From: Dominic Kempf <dominic.kempf@iwr.uni-heidelberg.de>
Date: Wed, 20 Feb 2019 14:11:32 +0100
Subject: [PATCH] Fix alignment in benchmark programs
---
python/dune/codegen/sumfact/autotune.py | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/python/dune/codegen/sumfact/autotune.py b/python/dune/codegen/sumfact/autotune.py
index 8537a819..a1d7442a 100644
--- a/python/dune/codegen/sumfact/autotune.py
+++ b/python/dune/codegen/sumfact/autotune.py
@@ -115,11 +115,12 @@ def write_setup_code(sf, filename, define_thetas=True):
constructor_knl = lp.get_one_scheduled_kernel(constructor_knl)
# Allocate buffers
+ alignment = get_option("max_vector_width") // 8
size = max(product(m.quadrature_size for m in sf.matrix_sequence_quadrature_permuted) * sf.vector_width,
product(m.basis_size for m in sf.matrix_sequence_quadrature_permuted) * sf.vector_width)
size = int(size * (get_option("precision_bits") / 8))
- f.writelines([" char buffer0[{}] __attribute__ ((aligned (32)));\n".format(size),
- " char buffer1[{}] __attribute__ ((aligned (32)));\n".format(size),
+ f.writelines([" char buffer0[{}] __attribute__ ((aligned ({})));\n".format(size, alignment),
+ " char buffer1[{}] __attribute__ ((aligned ({})));\n".format(size, alignment),
])
# Setup fastdg inputs
@@ -128,7 +129,7 @@ def write_setup_code(sf, filename, define_thetas=True):
f.write("{} = 0;\n".format(arg))
else:
size = sf.interface.fastdg_interface_object_size
- f.write(" RF {}[{}] __attribute__ ((aligned (32)));\n".format(arg.split()[-1], size))
+ f.write(" RF {}[{}] __attribute__ ((aligned ({})));\n".format(arg.split()[-1], size, alignment))
# Write stuff into the input buffer
f.writelines([" {0} *input = ({0} *)buffer0;\n".format(real),
--
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