ROCm: enable unified memory on Instinct GPUs

Author: fwyzard

rocm-flags.file

@@ -2,7 +2,7 @@
 # define the ROCm compilation flags in a way that can be shared by SCRAM-based and regular tools
 
 # build support for Instinct MI100 (gfx908), Instinct MI210/MI250X (gfx90a), Instinct MI300X (gfx942), Radeon Pro W6800 (gfx1030), Radeon Pro W7800/W7900 (gfx1100), and Radeon Pro W7600 (gfx1102)
-%define rocm_archs gfx908:sramecc+:xnack- gfx90a:sramecc+:xnack- gfx942:sramecc+:xnack- gfx1030 gfx1100 gfx1102
+%define rocm_archs gfx908:sramecc+ gfx90a:sramecc+ gfx942:sramecc+ gfx1030 gfx1100 gfx1102
 
 # LLVM/hipcc style for listing the supported ROCm compute architectures
 %define hipcc_flags_rocm_archs %(echo $(for ARCH in %rocm_archs; do echo "--offload-arch=$ARCH"; done))

scram-tools.file/tools/rocm/rocm.xml

@@ -23,5 +23,6 @@
   <flags SYSTEM_INCLUDE="1"/>
   <runtime name="ROOT_INCLUDE_PATH" value="$INCLUDE" type="path" join="1"/>
   <runtime name="PATH" value="$ROCM_BASE/bin" type="path"/>
+  <runtime name="HSA_XNACK" value="1"/>
   <use name="fmt"/>
 </tool>