-
公开(公告)号：CA1236588A
公开(公告)日：1988-05-10
申请号：CA491267
申请日：1985-09-20
Applicant: IBM
Inventor： BRANTLEY WILLIAM C JR , MCAULIFFE KEVIN P , NORTON VERN A , PFISTER GREGORY F , WEISS JOSEPH
Abstract: Method and Apparatus for dynamically partitioning a storage system into a global storage efficiently accessible by a number of processors connected to a network, and local storage efficiently accessible by individual processors, including means for interleaving storage references by a processor; means under the control of each processor for controlling the means for interleaving storage references and means for dynamically directing storage references to first or second portions of storage.
-
公开(公告)号：DE3586389D1
公开(公告)日：1992-08-27
申请号：DE3586389
申请日：1985-10-17
Applicant: IBM
Inventor： BRANTLEY JR , MCAULIFEE KEVIN PATRICK , NORTON VERN ALAN , PFISTER GREGORY FRANCIS , WEISS JOSEPH
Abstract: Method and Apparatus for dynamically partitioning a storage system into a global storage efficiently accessible by a number of processors connected to a network, and local storage efficiently accessible by individual processors, including means for interleaving storage references by a processor; means under the control of each processor for controlling the means for interleaving storage references and means for dynamically directing storage references to first or second portions of storage.In operation, a virtual address from a processor is stored in VAR 242 and comprises a segment and/or page index (S/P 1) 244, a page offset (PO) 246 and word offset (WO) 248. The S/P I is used in a conventional way as an index into the storage mapping tables 270 to provide a real address which is placed in register 250. Unique to this disclosure, the table look-up also provides a quantity, the interleave amount, which indicates whether the real address is in local or global storage and, which in the latter event, is used to derive the absolute addresses. The low order bits of the real address may be hashed using Remap 252 to introduce a random element into a sequence of consecutive addresses. The real address after mapping, excluding the word offset (WO) is passed to right rotate device 256 which is controlled by the interleave amount. The width of the field to be rotated and the amount the field is to be rotated are specified by the interleave amount. The derived absolute addresses are entered in register 258 and are passed for use onto a communication network interconnecting the processors and the storage system.
-
公开(公告)号：DE3586389T2
公开(公告)日：1993-03-04
申请号：DE3586389
申请日：1985-10-17
Applicant: IBM
Inventor： BRANTLEY JR , MCAULIFEE KEVIN PATRICK , NORTON VERN ALAN , PFISTER GREGORY FRANCIS , WEISS JOSEPH
Abstract: Method and Apparatus for dynamically partitioning a storage system into a global storage efficiently accessible by a number of processors connected to a network, and local storage efficiently accessible by individual processors, including means for interleaving storage references by a processor; means under the control of each processor for controlling the means for interleaving storage references and means for dynamically directing storage references to first or second portions of storage.In operation, a virtual address from a processor is stored in VAR 242 and comprises a segment and/or page index (S/P 1) 244, a page offset (PO) 246 and word offset (WO) 248. The S/P I is used in a conventional way as an index into the storage mapping tables 270 to provide a real address which is placed in register 250. Unique to this disclosure, the table look-up also provides a quantity, the interleave amount, which indicates whether the real address is in local or global storage and, which in the latter event, is used to derive the absolute addresses. The low order bits of the real address may be hashed using Remap 252 to introduce a random element into a sequence of consecutive addresses. The real address after mapping, excluding the word offset (WO) is passed to right rotate device 256 which is controlled by the interleave amount. The width of the field to be rotated and the amount the field is to be rotated are specified by the interleave amount. The derived absolute addresses are entered in register 258 and are passed for use onto a communication network interconnecting the processors and the storage system.
-
公开(公告)号：IN166397B
公开(公告)日：1990-04-28
申请号：IN838MA1985
申请日：1985-10-24
Applicant: IBM
Inventor： BRANTLEY WILLIAM CAIN JR , MCAULIFEE KEVIN PATRICK , MORTON VERN ALAN , PFISTER GREGORY FRANCIS , WEISS JOSEPH
Abstract: Method and Apparatus for dynamically partitioning a storage system into a global storage efficiently accessible by a number of processors connected to a network, and local storage efficiently accessible by individual processors, including means for interleaving storage references by a processor; means under the control of each processor for controlling the means for interleaving storage references and means for dynamically directing storage references to first or second portions of storage.In operation, a virtual address from a processor is stored in VAR 242 and comprises a segment and/or page index (S/P 1) 244, a page offset (PO) 246 and word offset (WO) 248. The S/P I is used in a conventional way as an index into the storage mapping tables 270 to provide a real address which is placed in register 250. Unique to this disclosure, the table look-up also provides a quantity, the interleave amount, which indicates whether the real address is in local or global storage and, which in the latter event, is used to derive the absolute addresses. The low order bits of the real address may be hashed using Remap 252 to introduce a random element into a sequence of consecutive addresses. The real address after mapping, excluding the word offset (WO) is passed to right rotate device 256 which is controlled by the interleave amount. The width of the field to be rotated and the amount the field is to be rotated are specified by the interleave amount. The derived absolute addresses are entered in register 258 and are passed for use onto a communication network interconnecting the processors and the storage system.
-
-
-
Search Results
4
records
(took 0.016 seconds)
