发明名称 ATOMIC MEMORY OPERATIONS ON AN N-WAY LINKED LIST
摘要 Computer-implemented methods for pushing or popping an element on to of off of an N-way linked list in a computer memory may include one or more atomic memory operations on a handle of the N-way linked list. One embodiment for pushing a first element on to an N-way linked list may include setting a next sequential element pointer of the first element to point to an unknown location marker. Another embodiment for popping a first element off of an N-way linked may include marking a sub-list tail handle with a designation indicating that the particular sub-list is involved in a pop process. In yet another embodiment, a method for popping a first element off of an N-way linked list may include storing in a sub-list tail handle a pointer to a pseudo element. The handle may fit within a single line of cache memory.
申请公布号 US2015234655(A1) 申请公布日期 2015.08.20
申请号 US201414182932 申请日期 2014.02.18
申请人 International Business Machines Corporation 发明人 Steinmacher-Burow Burkhard
分类号 G06F9/30;G06F12/08;G06F9/38 主分类号 G06F9/30
代理机构 代理人
主权项 1. A computer-implemented method for pushing a first element on to an N-way linked list in a computer memory, the N-way linked list for storing a plurality of elements, and having N linked sub-lists, a list order, and a handle, the handle having a sub-list tail handle for each of the sub-lists, each sub-list tail handle identifying a location of a tail of element of the respective sub-list or a maker indicating that the sub-list is empty, each element being in one of the N sub-lists and including a pointer to a next sequential element in a same sub-list, comprising: storing the first element in the memory and setting a next sequential element pointer of the first element to an unknown location marker; performing an atomic memory operation to: determine which particular sub-list includes the tail element of the list,swap a location of the first element with a location of the tail element in the sub-list tail handle of the particular sub-list, such that the first element is designated as the tail element of the list and the tail element is designated as a former tail element, anddetermine the location of the former tail element; and setting the next sequential element pointer of the first element to the location of the former tail element.
地址 Armonk NY US