Make even more thread IDs stand out more.
Make even more thread IDs stand out more.

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