SVE-vector-length-bugfix

4f08cc36 · Piet Jarmatz · Markus Holzer · 005b5293 · 4f08cc36
Commit 4f08cc36 authored 1 year ago by Piet Jarmatz Committed by Markus Holzer 1 year ago
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -379,7 +379,9 @@ if( WALBERLA_OPTIMIZE_FOR_LOCALHOST )
      endif()

      if( EXISTS "/proc/sys/abi/sve_default_vector_length" )
-        file( READ "/proc/sys/abi/sve_default_vector_length" SVE_LENGTH )
+        file( READ "/proc/sys/abi/sve_default_vector_length" SVE_LENGTH_BYTES )
+        string(STRIP "${SVE_LENGTH_BYTES}" SVE_LENGTH_BYTES)
+        math(EXPR SVE_LENGTH "${SVE_LENGTH_BYTES} * 8")
        add_flag ( CMAKE_CXX_FLAGS "-msve-vector-bits=${SVE_LENGTH}" )
        add_flag ( CMAKE_C_FLAGS   "-msve-vector-bits=${SVE_LENGTH}" )
      endif()