A design having a hardware assist which allows the creation and usage of host virtual directory look-aside table (DLAT) entries while in a start interpretive execution (SIE) mode results in a performance gain for gues...
详细信息
A design having a hardware assist which allows the creation and usage of host virtual directory look-aside table (DLAT) entries while in a start interpretive execution (SIE) mode results in a performance gain for guest virtual DLAT trap in a system that runs under VM/XA. The address check boundary (ACB) bit in the DLAT is defined as the host bit to distinguish between host entries and guest entries.
This article relates to an editor-formatter for structured documents which must distinguish between different types of objects in documents and, more particularly, to a method of differentiating the treatment of norma...
详细信息
This article relates to an editor-formatter for structured documents which must distinguish between different types of objects in documents and, more particularly, to a method of differentiating the treatment of normal paragraph text and text such as addresses in letters and computer programs.
A new parallel sorting algorithm is proposed, assuming a linearly connected multiprocessor system with a limited number of processors. The algorithm is based on merging and exchanging data between adjacent processors....
详细信息
A new parallel sorting algorithm is proposed, assuming a linearly connected multiprocessor system with a limited number of processors. The algorithm is based on merging and exchanging data between adjacent processors. The upper bound is analytically investigated, and the throughput is proportional to the number of processors. The time complexity is O(N) for N data with O(log N) processors. Average number of iterations for a multiprocessor with two processing elements is also analytically investigated. Execution time for real situation is numerically simulated on a conventional computer.
This enhancement allows the viewing of a document directly when referenced in a schedule in the PROFS Program Product. In the PROFS system,a user may view a document referenced in a note and in another document, but n...
详细信息
This enhancement allows the viewing of a document directly when referenced in a schedule in the PROFS Program Product. In the PROFS system,a user may view a document referenced in a note and in another document, but not from a user's calendar screen. With the current implementation, the user may prepare and mail an electronic document which contains a meeting notification. The meeting notification includes the date (or dates), starting and ending time, requester, location, subject, and purpose of the meeting. The document may also contain other information, such as a detailed agenda or materials which are required for the meeting.
The contribution refers to the limits of the CSP description and the Petri-network method, presently used for the design of parallel and real-time program systems and introduces the process synchronization (PS) method...
详细信息
The contribution refers to the limits of the CSP description and the Petri-network method, presently used for the design of parallel and real-time program systems and introduces the process synchronization (PS) method. The PS description is universal, with exactly defined syntax and semantics, of high abstractional level and also practically well applicable. Its most important feature is that the class of input and output conditions used can be freely defined. Thus, devices of varying semantics can be written with a joint syntax. The PS description is suitable for the delineation and grouping of various well-known synchronizing means and even for the design of new ones;the main purpose is, however, to assist in the design of program systems to be developed with the help of a given program language and operational system. Some program schemes are shown, which are important in practice, together with their PS description.
The first contributions that discussed the problem of defining dynamical systems with input, output, and state functions depending on two independent variables appeared nearly 10 years ago. In principle, they were mot...
详细信息
The first contributions that discussed the problem of defining dynamical systems with input, output, and state functions depending on two independent variables appeared nearly 10 years ago. In principle, they were motivated by the necessity of investigating recursive structures for processing two-dimensional data, such as images and seismic signals. In this section the authors introduce the external and internal representations of two-dimensional systems and a formal description of the realization problem. A solution to this problem is given in terms of Nerode equivalence;however, it provides an infinite-dimensional state model. The solution in terms of finite-dimensional updating equations is provided by local state models.
A method is provided for a user of a computer terminal or workstation to enter document composition instructions whereby the user is able to see the resolved instruction and is also able to modify the source. This met...
详细信息
A method is provided for a user of a computer terminal or workstation to enter document composition instructions whereby the user is able to see the resolved instruction and is also able to modify the source. This method uses a menu approach. For new users, the menu approach allows for a friendly learning technique over the range of document composition commands that are available. Two display examples of these menus are illustrated.
Microprogramming is a technique for two implementing machine language instruction sets - it is critical in today's computer architectures and operating systems. An emulator is a set of microprograms that implement...
详细信息
Microprogramming is a technique for two implementing machine language instruction sets - it is critical in today's computer architectures and operating systems. An emulator is a set of microprograms that implements the architecture of one machine on another;microprogramming is often used in emulation to make one computer system appear as if it were another. This paper presents the architecture for a microprogrammed computer system, the VSEM. The simulated virtual computer system, its monitor and a simulated concurrent PASCAL are discussed. The usefulness of the VSEM, its monitor and the concurrent PASCAL as vehicles for instruction in systemsprogramming is addressed.
This article describes a method by which users of a manufacturing accounting and production information control program may test and replace application control characters. The procedure searches for the record specif...
详细信息
This article describes a method by which users of a manufacturing accounting and production information control program may test and replace application control characters. The procedure searches for the record specified by the programmer (in SCKEY) in the application program's System Control File, searches for the one-position location within that record, and then looks at the value stored within that location to determine what to do next. This procedure is used by a programmer to instruct the application program as outlined.
A new mechanism for constructing highly available distributed programs is described. It combines remote procedure call with replication of program modules for fault tolerance. The set of replicas of a module is called...
详细信息
A new mechanism for constructing highly available distributed programs is described. It combines remote procedure call with replication of program modules for fault tolerance. The set of replicas of a module is called a troupe. In a program constructed from troupes, what appears to the programmer as a single inter-module procedure call results in a replicated procedure call. A distributed program constructed in this way will continue to function as long as at least one member of each troupe survives. The semantics of replicated procedure calls and troupes are defined and algorithms are presented that support these semantics.
暂无评论