Struct Logger

• Defined in File logger.hpp

Inheritance Relationships

Base Type

• public sequant::Singleton< Logger > (Template Class Singleton)

Struct Documentation

struct Logger : public sequant::Singleton<Logger>

controls logging within SeQuant components, only useful for troubleshooting/learning

Public Members

bool wick_harness = false

bool wick_topology = false

bool wick_contract = false

bool wick_reduce = false

bool wick_stats = false

bool expand = false

bool canonicalize = false

bool canonicalize_input_graph = false

bool canonicalize_dot = false

bool simplify = false

bool tensor_network = false

bool export_equations = false

size_t level

Evaluation log verbosity level 0: No log. 1: Log what is being evaluated in the evaluation tree (independent of tensor algebra backend (TA/BTAS etc.) 2: Also log invocation of tensor algebra backend within sequant. 3: Also log TiledArray memory use.

std::ostream *stream

the stream for logging; can be set to nullptr

std::function<std::size_t(std::size_t)> rss_reduce = {}

Optional reducer for the per-op RSS reported in the eval trace: maps this rank’s local RSS (bytes) to the value to report (e.g. the sum over all ranks = true total app memory, instead of a misleading single-rank RSS). Injected by the tensor-algebra backend, which holds the World needed for a collective reduction. The eval log path runs on EVERY rank (printing() is level>0, identical across ranks), so a collective reducer here is matched across ranks. Empty = report this rank’s RSS unchanged.

struct sequant::Logger eval = {0, nullptr, {}}