unison on blacklight (not working)

https://portal.xsede.org/psc-blacklight
"Blacklight runs an enhanced version of the SuSE Linux operating system."

I download a Linux binary unison to blacklight frontend. 
http://www.cs.haifa.ac.il/~shuly/unison/

hqin2@tg-login1:~> ll

total 1376

lrwxrwxrwx 1 hqin2 mc48o9p      27 2015-06-25 16:06 unison -> unison-2.27.47-linux32.text

-rwxr-x--x 1 hqin2 mc48o9p 1348789 2015-06-25 16:05 unison-2.27.47-linux32.text

-rw------- 1 hqin2 mc48o9p     315 2015-06-25 16:13 unison.log

On byte

Byte-2:demo hqin$ unison tmp1 ssh://hqin2@blacklight.psc.xsede.org/tmp1

Contacting server...

hqin2@blacklight.psc.xsede.org's password: 

bash: unison: command not found

Fatal error: Lost connection with the server

unison tmp1 ssh://hqin2@blacklight.psc.xsede.org/tmp1

OK, it is not trivial to setup unison on blacklight.