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Computer runtime parallelization technique
Anasua; Franklin, Manoj (2002). "A General Compiler Framework for Speculative Multithreading". Proceedings of the fourteenth annual ACM symposium on Parallel
Speculative_multithreading
Computer optimization technique
database systems. Speculative multithreading is a special case of speculative execution. Modern pipelined microprocessors use speculative execution to reduce
Speculative_execution
Ability of a CPU to provide multiple threads of execution concurrently
of event. This type of multithreading is known as block, cooperative or coarse-grained multithreading. The goal of multithreading hardware support is to
Multithreading (computer architecture)
Multithreading_(computer_architecture)
Efficiency improving technique for superscalar CPUs
Simultaneous multithreading (SMT) is a technique for improving the overall efficiency of superscalar CPUs with hardware multithreading. SMT permits multiple
Simultaneous_multithreading
Topics referred to by the same term
optimization technique is used in pipelined processors and other systems Speculative multithreading, a dynamic parallelization technique that depends on out-of-order
Speculative
at compilation time and execution time by the introduction of speculative multithreading. Much in the same way a branch predictor allows for a processor
Core_Multiplexing_Technology
Type of concurrency control mechanism
only used to facilitate speculative optimizations for binary translation, rather than any form of speculative multithreading, or exposing it directly
Transactional_memory
Method of improving computer program speed
(formally CAPTools). Finally, another approach is hardware-supported speculative multithreading. Most research compilers for automatic parallelization consider
Automatic_parallelization
Sun Microsystems multiprocessor design
Sun referred to this as Space-Time Computing (STC), and it is a speculative multithreading design. Processors up to this point had tried to extract parallelism
MAJC
of research projects, such as the Unified Parallel C (UPC) and speculative multithreading work at various universities. The 2010 Open64 Developers Forum
Open64
American computer scientist
dependencies are not fully known in advance. His research group explored speculative multithreading and its applications to synchronization, debugging data races
Josep_Torrellas
Instruction set architecture extension
multi-versioned transactional memory that is more amenable to speculative multithreading. In August 2014, Intel announced that a bug exists in the TSX/TSX-NI
Transactional Synchronization Extensions
Transactional_Synchronization_Extensions
Component of computer engineering
Another technique that has become more popular recently is multithreading. In multithreading, when the processor has to fetch data from slow system memory
Microarchitecture
Computer component
Data Vector Memory Distributed Multithreading Temporal Simultaneous Hyperthreading Simultaneous and heterogenous Speculative Preemptive Cooperative Flynn's
Translation_lookaside_buffer
Topics referred to by the same term
platform vehicle with a large array of wheels on the bottom. Speculative multithreading (SpMT), a dynamic parallelization technique that depends on out-of-order
SPMT
Hardware cache of a central processing unit
data. Another technology, used by many processors, is simultaneous multithreading (SMT), which allows an alternate thread to use the CPU core while the
CPU_cache
Central computer component that executes instructions
physical CPUs, called processor cores, can also be multithreaded to support CPU-level multithreading. An IC that contains a CPU may also contain memory
Central_processing_unit
CPU that implements instruction-level parallelism within a single processor
Eager execution Hyper-threading Simultaneous multithreading Out-of-order execution Shelving buffer Speculative execution Software lockout, a multiprocessor
Superscalar_processor
Method of CPU communication
Direct memory access Advanced Configuration and Power Interface (ACPI) Speculative execution CPU vulnerabilities A memory that besides registers is directly
Memory-mapped I/O and port-mapped I/O
Memory-mapped_I/O_and_port-mapped_I/O
Set of computers configured in a distributed computing system
Thread Task Data Memory Loop Pipeline Multithreading Temporal Simultaneous (SMT) Simultaneous and heterogenous Speculative (SpMT) Preemptive Cooperative Clustered
Computer_cluster
Security-related instruction code processor extension
at Imperial College London showed a proof of concept that the Spectre speculative execution security vulnerability can be adapted to attack the secure
Software_Guard_Extensions
Ability of computer instructions to be executed simultaneously with correct results
that can be exploited through techniques such as multiprocessing and multithreading. Data dependency Memory-level parallelism (MLP) "The History of Computing"
Instruction-level_parallelism
Message-passing system for parallel computers
is relatively easy to write multithreaded point-to-point MPI code, and some implementations support such code. Multithreaded collective communication is
Message_Passing_Interface
2002 11 Speculative execution, branch prediction, register renaming, 30 execution units, multithreading, multi-core, coarse-grained multithreading, 2-way
Comparison of CPU microarchitectures
Comparison_of_CPU_microarchitectures
Digital circuit that produces sums from inputs
Data Vector Memory Distributed Multithreading Temporal Simultaneous Hyperthreading Simultaneous and heterogenous Speculative Preemptive Cooperative Flynn's
Adder_(electronics)
applications. Many modern multi-core processors also incorporate simultaneous multithreading (SMT), a technology that allows each physical core to execute multiple
History of general-purpose CPUs
History_of_general-purpose_CPUs
Combinational digital circuit
Data Vector Memory Distributed Multithreading Temporal Simultaneous Hyperthreading Simultaneous and heterogenous Speculative Preemptive Cooperative Flynn's
Arithmetic_logic_unit
Type of digital adder
Data Vector Memory Distributed Multithreading Temporal Simultaneous Hyperthreading Simultaneous and heterogenous Speculative Preemptive Cooperative Flynn's
Carry-save_adder
Problems with central processing unit design
dependency Hazard (logic) Hazard pointer Classic RISC pipeline § Hazards Speculative execution Branch delay slot Branch predication Branch predictor Race
Hazard (computer architecture)
Hazard_(computer_architecture)
Programming paradigm in which many processes are executed simultaneously
core can issue multiple instructions from one thread. Simultaneous multithreading (of which Intel's Hyper-Threading is the best known) was an early form
Parallel_computing
Order of accesses to computer memory by a CPU
CPU at runtime. However, memory order is of little concern outside of multithreading and memory-mapped I/O, because if the compiler or CPU changes the order
Memory_ordering
AMD brand for microprocessors
host device manufacturer has exposed that functionality. Simultaneous multithreading (SMT) is now standard across the lineup unlike the 4000-series Ryzen
Ryzen
Register in a computer's CPU
Data Vector Memory Distributed Multithreading Temporal Simultaneous Hyperthreading Simultaneous and heterogenous Speculative Preemptive Cooperative Flynn's
Memory_buffer_register
2019 AMD 7-nanometer processor microarchitecture
64 physical cores and 128 total compute threads (with simultaneous multithreading) are supported per socket. This architecture is nearly identical to
Zen_2
on 14 nm process. First AMD architecture to implement simultaneous multithreading and Infinity Fabric. AMD Zen+ Family 17h – revised Zen architecture
List of AMD CPU microarchitectures
List_of_AMD_CPU_microarchitectures
Data Vector Memory Distributed Multithreading Temporal Simultaneous Hyperthreading Simultaneous and heterogenous Speculative Preemptive Cooperative Flynn's
Redundant binary representation
Redundant_binary_representation
Computer hardware technology
Data Vector Memory Distributed Multithreading Temporal Simultaneous Hyperthreading Simultaneous and heterogenous Speculative Preemptive Cooperative Flynn's
Trusted_Execution_Technology
Instruction set architecture
stream to reduce the memory programs require; and MIPS MT, which adds multithreading capability. Computer architecture courses in universities and technical
MIPS_architecture
Circuit that performs subtraction
Data Vector Memory Distributed Multithreading Temporal Simultaneous Hyperthreading Simultaneous and heterogenous Speculative Preemptive Cooperative Flynn's
Subtractor
Canceled SPARC microprocessor
Rock (or ROCK) was a multithreading, multicore, SPARC microprocessor under development at Sun Microsystems. Canceled in 2010, it was a separate project
Rock_(processor)
Power ISA-based processor
16 KB+16 KB instruction and data cache and is capable of four-way multithreading. It has a fine grain branch prediction unit (BPU) with eight 1024-entry
IBM_A2
Microprocessor instruction set architecture
enhancements to the basic processor architecture including: Hardware multithreading: Each processor core maintains context for two threads of execution
IA-64
Family of instruction set architectures
processors) and AMD CPUs (starting from Zen) are also capable of simultaneous multithreading with two threads per core (Xeon Phi has four threads per core). Some
X86
CPU microarchitecture
but should outperform it on applications that can use simultaneous multithreading and SSE3. They run from 0.8 to 2.0 GHz and have a TDP rating between
Bonnell_(microarchitecture)
Concept in computer architecture and processor design
physical core either. Instruction pipeline Speculative execution Out-of-order execution Simultaneous multithreading Data dependency Kartunov, Victor; Yury
Replay_system
Microprocessing technique
Runahead is a technique that allows a computer processor to speculatively pre-process instructions during cache miss cycles. The pre-processed instructions
Runahead
(for MICRO 1998): A Dynamic Multithreading Processor — Haitham Akkary; Michael A. Driscoll. 2019 (for MICRO 2001): Speculative Lock Elision: Enabling Highly
International Symposium on Microarchitecture
International_Symposium_on_Microarchitecture
2014 film by Dean DeBlois
Watt, Martin. "Parallel evaluation of character rigs using TBB" (PDF). Multithreading and VFX. p. 2. Archived (PDF) from the original on October 21, 2013
How_to_Train_Your_Dragon_2
Microprocessor brand name by Intel
is in turn outperformed by a dual core Intel Atom 330 in tests where multithreading is used. The Core 2 Duo SU7300 outperforms the dual-core Nano. The Xcore86
Intel_Atom
Amount of useful work accomplished by a computer
Due to the specific capabilities of modern CPUs, such as simultaneous multithreading and uncore— which imply shared use of actual CPU resources to improve
Computer_performance
Higher level of microcode
Data Vector Memory Distributed Multithreading Temporal Simultaneous Hyperthreading Simultaneous and heterogenous Speculative Preemptive Cooperative Flynn's
Millicode
Microprocessor designed by Fujitsu
two-way simultaneous multithreading (SMT), which replaces two-way coarse-grained multithreading, termed vertical multithreading (VMT) by Fujitsu. Thus
SPARC64_V
Server and workstation processor line by AMD
incorporate a variety of improvements, particularly in memory prefetching, speculative loads, SIMD execution and branch prediction, yielding an appreciable
Opteron
Working storage in a computer processor
registers each (four read and four write ports) to facilitate simultaneous multithreading, as its parallel instructions cannot be used across any other register
Register_file
2023 novel by Stephen Baxter
ISBN 978-1-4732-2895-5. Creation Node title listing at the Internet Speculative Fiction Database Creation Node at FantasticFiction Creation Node at Victor
Creation_Node
Network packet distribution with multiple cores
Thread Task Data Memory Loop Pipeline Multithreading Temporal Simultaneous (SMT) Simultaneous and heterogenous Speculative (SpMT) Preemptive Cooperative Clustered
Multi-core network packet steering
Multi-core_network_packet_steering
Supercomputer at the University of Illinois Urbana-Champaign, United States
Thread Task Data Memory Loop Pipeline Multithreading Temporal Simultaneous (SMT) Simultaneous and heterogenous Speculative (SpMT) Preemptive Cooperative Clustered
Blue_Waters
Use of widely distributed computer resources to reach a common goal
Thread Task Data Memory Loop Pipeline Multithreading Temporal Simultaneous (SMT) Simultaneous and heterogenous Speculative (SpMT) Preemptive Cooperative Clustered
Grid_computing
Computing paradigm to improve computational efficiency
instructions past branches that have yet to be resolved is known as speculative execution. Are the instructions dispatched to a centralized queue or
Out-of-order_execution
Series of supercomputers by IBM
The L2 cache is multi-versioned—supporting transactional memory and speculative execution—and has hardware support for atomic operations. L2 cache misses
IBM_Blue_Gene
SPECULATIVE MULTITHREADING
SPECULATIVE MULTITHREADING
Girl/Female
Biblical
A watch-tower, speculation.
Surname or Lastname
English
English : probably a variant of Joyce. There is a family tradition among bearers of the name that it means ‘chosen’, from Middle English, Old French chois (of Germanic origin). In the Middle Ages the word was used both for an ‘act of choosing’ and a ‘thing chosen’, and as an adjective with the meaning ‘chosen’, ‘select’, ‘favored’. Perhaps this word gave rise to a nickname, but there is no evidence to support this speculation.
Male
English
English surname transferred to forename use, from the city name Leicester which was recorded in the 10th century as Ligora caester "Ligora's fort." Ligora is related to Liguria, a very old place name of obscure origin, dating back to pre-Roman times. There has been some speculation concerning a possible connection between Ligora/Liguria and Celtic Lug, LESTER means "oath."
Girl/Female
Biblical
A watch-tower, speculation.
Surname or Lastname
English
English : according to Reaney this is a nickname from an unattested Old English word cybbe meaning ‘clumsy’ or ‘thickset’. Reaney’s speculation is apparently based on taking the Middle English word kibble ‘cudgel’ as a diminutive of an unattested Old English word. Corresponding personal names have been postulated for the place names Kibworth (‘enclosure of a man called Cybba’) and Kibblesworth (‘enclosure of a man called Cybbel’); so, in theory, the surname could be a reflex of these Old English personal names.North German : nickname for a cantankerous person, from Middle Low German, Middle High German kiven ‘to quarrel’.
Biblical
Mizpeh, a watch-tower; speculation
Surname or Lastname
English
English : perhaps a habitational name from an unidentified place, the last element of which could be Old English dūn ‘hill’. Without early forms, it is impossible even to speculate what the first element might be. The surname is extremely common in Lancashire, especially in the Manchester area, where it was first recorded in the 14th century.
SPECULATIVE MULTITHREADING
SPECULATIVE MULTITHREADING
Boy/Male
German
Honorable
Girl/Female
Hindu
Wise
Girl/Female
Indian, Tamil
Grace; Beautiful
Girl/Female
American, Australian, Latin
Truth; Faith
Boy/Male
French
Name of a nobleman.
Girl/Female
Australian, Indian, Sikh
Gift from God
Boy/Male
Irish American
Famous bearer: 6th century Irish St. Declan.
Female
English
Variant spelling of English Crystal, KRYSTLE means "crystal, ice."
Boy/Male
Muslim
Brilliant
Surname or Lastname
English (Lancashire)
English (Lancashire) : habitational name from a place near Kirkham, named with Middle English thrall ‘serf’ (Old Norse þrǽll) + fall ‘clearing’, ‘place where the trees have been felled’.
SPECULATIVE MULTITHREADING
SPECULATIVE MULTITHREADING
SPECULATIVE MULTITHREADING
SPECULATIVE MULTITHREADING
SPECULATIVE MULTITHREADING
v. i.
To purchase with the expectation of a contingent advance in value, and a consequent sale at a profit; -- often, in a somewhat depreciative sense, of unsound or hazardous transactions; as, to speculate in coffee, in sugar, or in bank stock.
imp. & p. p.
of Speculate
n.
The act of speculating.
a.
Speculatory; speculative.
a.
Of or pertaining to vision; also, prying; inquisitive; curious.
v. t.
To consider attentively; as, to speculate the nature of a thing.
a.
Of or pertaining to speculation in land, goods, shares, etc.; as, a speculative dealer or enterprise.
n.
Philosophical speculation and discussion.
a.
Involving, or formed by, speculation; ideal; theoretical; not established by demonstration.
a.
Given to action rather than contemplation; practical; operative; -- opposed to speculative or theoretical; as, an active rather than a speculative statesman.
a.
Pertaining to theory; depending on, or confined to, theory or speculation; speculative; terminating in theory or speculation: not practical; as, theoretical learning; theoretic sciences.
n.
Speculation; theory.
n.
Undue boldness of speculation; unbelief.
n.
The speculative part of a science; speculation.
p. pr. & vb. n.
of Speculate
n.
A conclusion to which the mind comes by speculating; mere theory; view; notion; conjecture.
n.
One who forms theories; one given to theory and speculation; a speculatist.
a.
Given to speculation; contemplative.
v. i.
To consider by turning a subject in the mind, and viewing it in its different aspects and relations; to meditate; to contemplate; to theorize; as, to speculate on questions in religion; to speculate on political events.
a.
Exercising speculation; speculative.