Patent ID: 11907641
Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Field: Computer technology (Electrical engineering)
Classification: CPC G  H | IPC G

Claim 6:
7. The computation apparatus according to any one of claims 4 to 6, wherein
C is a cache memory size of the cache memory and M is a main memory size of the main memory,
Scsv is a maximum value of a size of character strings for one record of the text file,
scsv is a minimum value of the size of the character strings for one record,
Senc is a maximum value of a total size of encode information, the encode information being obtained by encoding the character strings for one record into an element of the predetermined finite set,
Sss is a maximum value of a total size of a calculation value, the calculation value being obtained by performing the calculation to the encode information for one record,
Sref is a total size of reference information indicating a position and a length of each of the cells for one record,
the number r of records is a function value of C/(Scsv+Senc+Sref),
I is a maximum value of the number of repetition times of the encoding and the calculation, the encoding and the calculation being executed for every process unit character string PSi,j, max(Sref,Sss)=Sref holds when Sref≥Sss, max(Sref,Sss)=Sss holds when Sref<Sss, f0 is a function value of scsv·M/(scsv+Senc+max(Sref,Sss)), and the number np of parallels is a function value of f0/I·r·Scsv, and
the file buffer size f is a function value of f0/np.