Execution information¶
Every ProgramOutput has execution: ExecutionInfo, defaulting to an empty ExecutionInfo(). Individual fields may be unknown; explicit execution=None is invalid. Passing ExecutionInfo() or execution={} means output.execution.wall_time returns None without requiring a check for the execution object itself.
host_cpu counts logical CPUs; host_mem_gib accepts fractional values. The former hostcpus and hostmem names are no longer accepted.
wall_time is measured in seconds and host_mem_gib in GiB. host_cpu and host_mem_gib describe host capacity, not the resources allocated to the job. Each trajectory entry records its own execution information, including its working directory.
Runtime information about a program execution.
All fields may be unknown. Pass ExecutionInfo() when no details are available.
Attributes:
| Name | Type | Description |
|---|---|---|
scratch_dir |
Path | None
|
The working directory used by the program. |
wall_time |
float | None
|
Elapsed execution time in seconds. |
hostname |
str | None
|
The hostname of the machine where the program ran. |
host_cpu |
int | None
|
The number of logical CPUs on the host, not the allocated CPU count. |
host_mem_gib |
float | None
|
The host's total memory in GiB, not the allocated memory. |
extras |
dict[str, Any]
|
Additional execution information. |