ISR11 S0CCER - A Concordance Program chapter Guy E. Hochgesang Harvard University Gerard Salton Use, reproduction, or publication, in whole or in part, is permitted for any purpose of the United States Government. 111-7 and is source normally the systc[OCRerr] output tape, A3. The logical tape number of the tape may not be changed from A3 to another unit without changing the deck for S[OCRerr]CCE[OCRerr] as described in Part 7. SMRTAP is the tape used as an intermediate tape for S[OCRerr]CCER and is defined to be B2. Again this tape number may not be changed unless the [OCRerr]dcc[OCRerr] source deck is changed. C. Scratch Tapes The sort of S[OCRerr]IRTAP done by [OCRerr]CCER is a tape-merge sort requiring an equal number of scratch tapes on A-channel and B-channel. The number of scratch tapes requ[OCRerr]red on each channel is equal to the order of the merge is controlled by the [OCRerr]I[OCRerr]DE[OCRerr] control card. Below is a table of the scratch used by [OCRerr][OCRerr]CCER: and tapes Channel A Channel B B2 A5 B3 A6 Bl A7 B5 A8 36 If a merge-sort of order n is specified by the use of the [OCRerr]RDER control card, the first *n tapes on both channels A and B will be used as scratch tapes. (Example - a merge of order 2 would use [OCRerr] A5, B2, and B3.) The maxiz[OCRerr] order of the sort is five, while. the minilmirn order is two. In general a high order sort will be faster than a lower order sort and consequently the processing will be faster. Note that it is possible, by use of the INPUT control card, to specify an INP[OCRerr][OCRerr] tape which will also be used as a scratch tape. For instance, the use of the control card INPUT [OCRerr] would specify the INPUT tape to be A4, which is also used as a scratch tape. In cases such as this, the text on the INPUT