That appears to be an earlier model of a similar system we had at UBC which could crunch arrays of FP numbers at 10 Mflops. Had it connected to an 11/44 and just recall doing some frantic programming mainly involving using minimal code as had to use memory management to allocate memory pages to get data into array processor and then fetch results. Realized at that time that a 56 Kb memory space was a bit limited for this type of work. Did FFT far faster than 11/23 (which took 1 second for 1024 points using DEC's code that shipped with MINC) but still had to do overnight runs to analyze a lot of our data. Likely have bad memories of that part of my programming career as we were under some rather tight deadlines to analyze data to get a few papers published and I much preferred writing in PDP11 assembler as very rarely had to deal with running out of memory issues with data acquisition code. Out of curiousity, decided to benchmark one of my old, really cheap PC laptops that got in 2010 and it managed 30 Mflops using double precision arithmetic. 10 Mflop performance no longer as impressive as it used to be.