Global ETD Search
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Showing 1 to 13 of 13 for “"Software Transactional Memory"”.
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HyflowCPP: A Distributed Software Transactional Memory Framework for C++
The distributed transactional memory (DTM) abstraction aims to simplify the development of distributed concurrent programs. It frees programmers from the complicated and error-prone task of explicit concurrency control based on locks (e.g., deadlocks, livelocks, non-scalability, non-composability), …
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HyFlow: A High Performance Distributed Software Transactional Memory Framework
We present HyFlow - a distributed software transactional memory (D-STM) framework for distributed concurrency control. Lock-based concurrency control suffers from drawbacks including deadlocks, livelocks, and scalability and composability challenges. These problems are exacerbated in distributed …
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ByteSTM: Java Software Transactional Memory at the Virtual Machine Level
… chips called multicores, improving software performance requires exposing greater concurrency in software. Since code that must be run sequentially is often due to the need for synchronization, the synchronization abstraction has a significant effect on program performance. …
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Real-Time Software Transactional Memory: Contention Managers, Time Bounds, and Implementations
… multicore architectures, on which improved software performance must be achieved by exposing greater concurrency. Transactional memory (TM) is an emerging alternative synchronization model for shared memory objects that promises to alleviate these difficulties. In this dissertation, we …
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Supporting Software Transactional Memory in Distributed Systems: Protocols for Cache-Coherence, Conflict Resolution and Replication
… layer of complexity: multinode concurrency. Transactional memory (TM) is an emerging, alternative synchronization abstraction that promises to alleviate these difficulties. With the TM model, code that accesses shared memory objects are organized as transactions, which speculatively execute, …
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Software lock elision for x86 machine code
… becoming a topic of intense research there is no transactional memory hardware nor any examples of software transactional memory use outside the research community. Using software transactional memory in large pieces of software needs copious source code annotations and often means that standard …
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Scaling synchronization primitives
… concurrency control mechanisms in databases and software transactional memory. Later, this thesis focuses on the scalability aspect of locks in both virtualized and non-virtualized scenarios. In a virtualized environment, we identify that these locks suffer from various preemption issues due to a …
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A High-Performance, Parallel Virtual Machine for Python
… semantics, which is based on a strong memory model and atomic operations on large entities. Such a concurrency semantics does not map well to modern hardware architectures, which is why parallel vms must emulate this semantics under parallel execution through expensive synchronization. …
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Collaborative Scheduling and Synchronization of Distributable Real-Time Threads
… To mitigate this, we consider the use of software transactional memory (or STM), an optimistic, non-blocking synchronization alternative to lock-based concurrency control which has been extensively studied in non real-time contexts. We consider distributable real-time threads with STM …
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On Partial Aborts and Reducing Validation Costs in Fault-tolerant Distributed Transactional Memory
Distributed Transactional Memory (DTM) is an emerging synchronization abstraction thatpromises to alleviate the scalability, programmability, and composability challenges of lock-based distributed synchronization. With DTM, programmers organize code that read/writeshared memory objects, both local …
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Extracting Parallelism from Legacy Sequential Code Using Transactional Memory
… Moreover, there exists a large base of legacy software which requires an immense effort and cost of rewriting and re-engineering to be made parallel. In the past decades, there has been a growing interest in automatic parallelization. This is to relieve programmers from the painful and …
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Scheduling Memory Transactions in Distributed Systems
Distributed transactional memory (DTM) is an emerging, alternative concurrency control model that promises to alleviate the difficulties of lock-based distributed synchronization. In DTM, transactional conflicts are traditionally resolved by a contention manager. A complementary approach for …
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Hybrid STM/HTM for nested transactions in Java
<p>Transactional memory (TM) has long been advocated as a promising pathway to more automated concurrency control for scaling concurrent programs running on parallel hardware. Software TM (STM) has the benefit of being able to run general transactional programs, but at the significant cost of …