Try to ensure we have stack.
Try to ensure we have stack.

diku-dk/futhark,diku-dk/futhark,mrakgr/futhark,ihc/futhark,mrakgr/futhark,ihc/futhark,diku-dk/futhark,HIPERFIT/futhark,mrakgr/futhark,ihc/futhark,HIPERFIT/futhark,diku-dk/futhark,diku-dk/futhark,HIPERFIT/futhark