From 196fd04dacf3390193ac0529bd1bffbb8e1d21d2 Mon Sep 17 00:00:00 2001
From: "Yuhsiang M. Tsai" <yhmtsai@gmail.com>
Date: Fri, 29 Nov 2019 14:21:56 +0100
Subject: [PATCH] update cuda auto csr param

---
 include/ginkgo/core/matrix/csr.hpp | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/include/ginkgo/core/matrix/csr.hpp b/include/ginkgo/core/matrix/csr.hpp
index 83bad0ce24e..75e94b800f8 100644
--- a/include/ginkgo/core/matrix/csr.hpp
+++ b/include/ginkgo/core/matrix/csr.hpp
@@ -461,12 +461,10 @@ class Csr : public EnableLinOp<Csr<ValueType, IndexType>>,
             // if the number of stored elements is larger than <nnz_limit> or
             // the maximum number of stored elements per row is larger than
             // <row_len_limit>, use load_balance otherwise use classical
-            // CUDA: nnz_limit = 1e6, row_len_limit = 64
-            // TODO: need to tune CUDA parameters according to new classical
-            //       strategy
+            // CUDA: nnz_limit = 1e6, row_len_limit = 1024
             // AMD: nnz_limit = 1e8, row_len_limit = 768
             index_type nnz_limit = 1e6;
-            index_type row_len_limit = 64;
+            index_type row_len_limit = 1024;
 #if GINKGO_HIP_PLATFORM_HCC
             if (!cuda_strategy_) {
                 nnz_limit = 1e8;