multicore we mean multiprocessor
The Duality of Memory and Communication in the Implementation of a Multiprocessor Operating System
Ngày tải lên :
12/09/2012, 15:05
... programs, • a better match between Mach facilities and both tightly and loosely coupled multiprocessors, and • improved performance In this paper we describe the relationship between memory and communication ... default pager to perform a pageout operation Multiprocessor Issues As faster networks and more loosely connected multiprocessors are built, the distinctions between the use of shared memory and message ... amounts of data could be transmitted between processes in Accent with extremely high performance through its use of memory-mapping techniques This allowed client and server processes to exchange...
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User-level Interprocess Communication for Shared Memory Multiprocessors
Ngày tải lên :
12/09/2012, 15:05
... (trap) takes 20 psecs We describe the mechanics of URPC in more detail in the next section In Section we discuss the design rationale behind URPC We discuss performance in Section we present In Section ... reallocated between address spaces [201 overhead involved in switching contexts be- tween two threads in the between address spaces, same-address space same-address space same address space we introduce ... heavyweight threads are costly, taking tens of milliseconds Many contemporary operating system kernels provide support for middleweight, address threads [12, 361 In contrast to heavyweight middleweight...
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Báo cáo y học: "Do we need a critical care ultrasound certification program? Implications from an Australian medical-legal perspective"
Ngày tải lên :
25/10/2012, 10:02
... procedure However, there is no warranty that the treatment will succeed, unless a contract was entered into with such an intention [7] Tortious duty - duty under the law of tort A ‘tort’ in law means ... small, provided it is not remote or fanciful) by adopting a means involving little difficulty or expense, the failure to adopt such means will, in general, be professional negligence (Box 4) [19] ... nowadays However, when ultrasound is easily accessible, the failure to use echocardiogram to guide pericardiocentesis may amount to negligence because the benefits of using such a method far outweigh...
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Báo cáo khoa học: "What do we know about medication errors made via a CPOE system versus those made via handwritten orders"
Ngày tải lên :
25/10/2012, 10:39
... Critical Care October 2005 Vol No Koppel measuring possible/potential errors If we examine patients’ charts, we may see both prevented and administered errors (There are undoubtedly other, undetected ... overwhelmingly count errors that not affect patients We almost always count potential errors, not actual adverse drug events; and even then, we usually find the inconsequential errors When Berger ... administration guide Thus, the demarcation between CPOE systems and forms of decision support, which might reduce or influence errors, is seldom the bright line we imagine When added to the reality that...
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