concurrency-synchronization-primitives-a-module

Plugin concurrency-synchronization-primitives-a-module in sancovp/dark-factory-live. Commands read from the repo's manifest — 1 month ago.

Skills (56)

• 0.1.1-understand-synchronizes_with

  [0.1.1] A relation between atomic operations in memory models where a release fence on one thread synchronizes with an

• 0.1.2-understand-memory_order_relaxed

  [0.1.2] C11/C++11 memory ordering that only guarantees atomicity of the operation with no ordering constraints relativ

• 0.1.3-understand-sequentially_consistent

  [0.1.3] The strongest memory ordering requiring a single total order of all sequentially consistent operations visible

• 0.1.4-understand-acquire_semantics

  [0.1.4] Memory ordering semantics ensuring all subsequent loads/stores cannot be reordered before the acquire operatio

• 0.1.5-understand-happens_before_relation

  [0.1.5] A fundamental ordering relation in memory models defining that if operation A happens-before operation B, then

• 0.1.6-understand-c11_memory_model

  [0.1.6] Standard C11 specification defining memory orderings: memory_order_relaxed, memory_order_consume, memory_order

• 0-1-understand-concurrency-synchronization-primitives-and-memor

  [0.1] the concurrency_synchronization_primitives_and_memor subdomain of concurrency synchronization primitives and memory models (99 concepts)

• 0.2.1-understand-atomic_cas

  [0.2.1] Compare-and-swap operation atomically loading a value, comparing it to an expected value, and storing a new va

• 0.2.2-understand-hb_synchronizes_with

  [0.2.2] A synchronization operation or primitive that establishes an inter-thread happens-before relationship, ensurin

• 0.2.3-understand-atomic_exchange

  [0.2.3] Atomic operation that reads the current value of a variable and writes a new value in a single indivisible ste

• 0.2.4-understand-cache_alignment

  [0.2.4] Placement of data structures on memory boundaries matching cache line size, typically 64 bytes, preventing fal

• 0.2-understand-core

  [0.2] the core subdomain of concurrency synchronization primitives and memory models (4 concepts)

• 0.3.1-understand-memory_order_relaxed_atomicity_guarantee

  [0.3.1] The indivisibility guarantee that a relaxed atomic operation completes as a single indivisible step; no interm

• 0.3.2-understand-indivisibility_property

  [0.3.2] The fundamental property that a relaxed atomic operation executes as a single indivisible step from the perspe

• 0.3.3-understand-memory_order_relaxed_vs_acquire

  [0.3.3] The ordering contrast where acquire_semantics prevents subsequent operations from being reordered before the a

• 0.3.4-understand-seq_cst_global_total_order

  [0.3.4] A single total order of all sequentially consistent operations that is visible and agreed upon by all threads

• 0.3.5-understand-rlx_atomicity_core

  [0.3.5] The fundamental indivisibility property that any relaxed atomic operation completes as a single non-interrupti

• 0.3.6-understand-seq_cst_default_atomic_ordering

  [0.3.6] The default memory ordering for std::atomic operations in C11/C++11 when no memory_order is explicitly specifi

• 0.3-understand-deep_c11_memory_model

  [0.3] the deep_c11_memory_model subdomain of concurrency synchronization primitives and memory models (108 concepts)

• 0.4.1-understand-thundering_herd_contention_surge

  [0.4.1] A transient spike in the rate of lock or resource acquisition attempts triggered by mass wakeup, producing que

• 0.4.2-understand-djt_bounding_range

  [0.4.2] The closed interval [min_delay, previous_delay times decorrelation_factor] from which the uniform random sampl

• 0.4.3-understand-djt_random_uniform_sample

  [0.4.3] The uniform random draw within the bounding range that produces the new current_delay value; the randomness de

• 0.4.4-understand-djt_wave_attenuation

  [0.4.4] The emergent property that decorrelated jitter reduces the probability of simultaneous retries among competing

• 0.4.5-understand-thundering_herd_retry_coordination

  [0.4.5] The phenomenon where concurrently woken threads retry a failing operation in near-lockstep, reinforcing the co

• 0.4.6-understand-thundering_herd_wait_set

  [0.4.6] A collection of threads blocked on a single synchronization point awaiting a condition; the structural prerequ

• 0.4-understand-deep_exponential_backoff

  [0.4] the deep_exponential_backoff subdomain of concurrency synchronization primitives and memory models (37 concepts)

• 0.5.1-understand-acquire_fence

  [0.5.1] A memory ordering primitive that ensures all load and store operations appearing after the fence in program or

• 0.5.2-understand-hb_program_order

  [0.5.2] The order of operations as they appear in source code within a single thread; a fundamental component of happe

• 0.5.3-understand-inter_thread_happens_before

  [0.5.3] The subset of happens_before relations that cross thread boundaries, established by synchronizes_with connecti

• 0.5.4-understand-happens_before_order

  [0.5.4] A transitive, irreflexive partial order over operations in a memory model that defines which operations must a

• 0.5.5-understand-hb_acquire_semantics

  [0.5.5] A memory ordering guarantee where all subsequent memory operations become visible only after the acquire opera

• 0.5.6-understand-hb_release_semantics

  [0.5.6] A memory ordering guarantee where all prior memory operations become visible before the release operation; pai

• 0.5-understand-deep_happens_before_relat

  [0.5] the deep_happens_before_relat subdomain of concurrency synchronization primitives and memory models (48 concepts)

• 0.6.1-understand-rmw_ind_001

  [0.6.1] rmw_operation: an atomic fetch_add, fetch_sub, fetch_or, fetch_and, fetch_xor, fetch_max, fetch_min, or fetch_

• 0.6.2-understand-isi_operation_completeness

  [0.6.2] The property that a relaxed atomic operation executes to full completion before any observer can witness its e

• 0.6.3-understand-isi_no_in_flight_state

  [0.6.3] The guaranteed absence of any transient value during operation execution that could be sampled by a concurrent

• 0.6.4-understand-rmw_ind_006

  [0.6.4] modification_order_commitment: the serialization of the RMW operation into the global modification order of th

• 0.6.5-understand-rmw_ind_003

  [0.6.5] modify_phase: the purely computational step wherein the value captured in the read phase is transformed by the

• 0.6.6-understand-rmw_ind_004

  [0.6.6] write_phase: the final step wherein the result of the modify phase is written atomically to the target variabl

• 0.6-understand-deep_indivisibility_prope

  [0.6] the deep_indivisibility_prope subdomain of concurrency synchronization primitives and memory models (19 concepts)

• 0.7.1-understand-jitter

  [0.7.1] Randomized variance introduced into the computed delay to decorrelate competing threads and mitigate thunderin

• 0.7.2-understand-current_delay

  [0.7.2] The computed wait interval for the current retry iteration; derived from base_delay multiplied by backoff_mult

• 0.7.3-understand-mcs_lock_enqueue

  [0.7.3] Operation appending a thread-local qnode to the queue tail; atomically CASes qnode into tail; on CAS failure,

• 0.7.4-understand-base_delay

  [0.7.4] Initial wait time in nanoseconds or microseconds before the first lock acquisition retry; the starting point o

• 0.7.5-understand-mcs_lock_qnode

  [0.7.5] Thread-local queue node containing locked flag and successor pointer; must be cache-aligned and allocated per-

• 0.7.6-understand-mcs_lock_release

  [0.7.6] Operation by which a thread releases the lock; sets own qnode.locked to false to unblock spinning successor; i

• 0.7-understand-deep_spinlock

  [0.7] the deep_spinlock subdomain of concurrency synchronization primitives and memory models (20 concepts)

• 0.8.1-understand-c11_atomic

  [0.8.1] The C11/C++11 memory model defined by the ISO standard; defines six memory orders (relaxed, consume, acquire,

• 0.8.2-understand-memory_order_acquire

  [0.8.2] Memory ordering barrier ensuring all loads and stores after the barrier in program order cannot be reordered b

• 0.8.3-understand-full_fence

  [0.8.3] A memory fence providing both acquire and release semantics; no memory operation on the issuing core may be re

• 0.8.4-understand-happens_before

  [0.8.4] transitive closure of program_order and synchronizes_with relations; the ordering guarantee that prevents data

• 0.8.5-understand-memory_order_release

  [0.8.5] Memory ordering barrier ensuring all loads and stores before the barrier in program order cannot be reordered

• 0.8.6-understand-dependency_chain

  [0.8.6] data or control dependency from one operation to another; under consume semantics substitutes for synchronizes

• 0.8-understand-deep_synchronizes_with

  [0.8] the deep_synchronizes_with subdomain of concurrency synchronization primitives and memory models (72 concepts)

• 0-understand-concurrency-synchronization-primitives-and-memory-models

  [0] the concurrency synchronization primitives and memory models library — every skill a certified region of the KB; call number = home : facets

• using-concurrency-synchronization-primitives-a

  Use the concurrency synchronization primitives and memory models neurosymbolic module: RAG library, agent brain, growable KB — proof-checked

Similar plugins