Presumably the said supercomputer is for academic research or corporate use,  and not owned by you?   If you had shown up a few weeks ago when LTC difficulty is at 14 to 16, you would account for about 25 to 30% of network hashrate.  But now even such hashrate is only 1.2 to 1.5% of network.  Also you seem to have very high stale/invalid at 10%.