performing calibration on flex input output signals on {TAIL ~ a first cell processor} of {HEAD ~ said plurality} of cell processors and said first input output controller of said plurality of input output controllers, 
performing calibration on flex input output signals on { TAIL ~ a first cell processor } of { HEAD ~ said plurality } of cell processors and said first input output controller of said plurality of input output controllers ,
OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH