Vectorized Floating-Point Execution Unit Torture
The AVX/FMA module delivers the ultimate CPU stress test through 12 distinct execution waves designed to saturate every floating-point execution unit on your processor. This module exploits Advanced Vector Extensions (AVX) and Fused Multiply-Add (FMA) instructions to create maximum computational load with sophisticated dependency chains that resist optimization.
Creates long dependency chains through fused multiply-add operations, forcing sequential execution and preventing parallel FMA unit utilization.
Combines memory bandwidth stressing with complex permutation patterns and FMA operations to stress both data movement and computation units.
Reciprocal and square root approximations with nested operations create maximum ALU load through low-accuracy approximations.
Chains of division operations - the slowest AVX operations available - create maximum execution latency and pipeline stalls.
Cross-domain penalties through single/double precision conversions stress the CPU's format conversion units.
Gather operations with unpredictable index patterns designed to thrash CPU caches and stress memory subsystems.
Variable blend masks create complex data dependencies and stress the CPU's blend execution units with unpredictable patterns.
All FMA variants (add, subtract, negate) operating simultaneously to fully saturate every available FMA execution unit.
Alternating add/subtract operations create pipeline conflicts and prevent efficient instruction scheduling.
Complex comparison predicates with data-dependent blending create unpredictable execution paths and branch mispredictions.
Polynomial approximation of e^x using Taylor series creates extremely compute-intensive mathematical operations.
Maximum register utilization with complex dependencies prevents register renaming optimizations and stresses allocation units.
256-bit SIMD operations across all available vector execution units, maximizing floating-point throughput and power consumption.
Fused multiply-add operations create maximum computational density with 2 operations per instruction cycle.
High-power AVX instructions generate maximum heat, testing CPU cooling solutions and thermal management.
All 16 YMM registers under constant pressure, stressing physical register allocation and renaming logic.
Complex dependency chains challenge the CPU's ability to find instruction-level parallelism.
Memory bandwidth torture through permutations and gather operations stress cache hierarchies.
This module generates maximum CPU heat through sustained AVX execution. Your processor WILL thermal throttle and may become unstable without adequate cooling. Monitor temperatures closely and ensure proper ventilation. Extended execution may cause permanent damage to inadequately cooled systems.