TaskGroup constructor

const TaskGroup({ Input<String>? parallelism, Input<bool>? permissiveSsh, Input<bool>? requireHostsFile, Input<TaskGroupSchedulingPolicy>? schedulingPolicy, Input<String>? taskCount, Input<String>? taskCountPerNode, Input<List<Environment>>? taskEnvironments, required Input<TaskSpec> taskSpec, })

Creates a new TaskGroup. parallelism Max number of tasks that can run in parallel. Default to min(task_count, parallel tasks per job limit). See: Job Limits. Field parallelism must be 1 if the scheduling_policy is IN_ORDER. permissiveSsh When true, Batch will configure SSH to allow passwordless login between VMs running the Batch tasks in the same TaskGroup. requireHostsFile When true, Batch will populate a file with a list of all VMs assigned to the TaskGroup and set the BATCH_HOSTS_FILE environment variable to the path of that file. Defaults to false. schedulingPolicy Scheduling policy for Tasks in the TaskGroup. The default value is AS_SOON_AS_POSSIBLE. taskCount Number of Tasks in the TaskGroup. Default is 1. taskCountPerNode Max number of tasks that can be run on a VM at the same time. If not specified, the system will decide a value based on available compute resources on a VM and task requirements. taskEnvironments An array of environment variable mappings, which are passed to Tasks with matching indices. If task_environments is used then task_count should not be specified in the request (and will be ignored). Task count will be the length of task_environments. Tasks get a BATCH_TASK_INDEX and BATCH_TASK_COUNT environment variable, in addition to any environment variables set in task_environments, specifying the number of Tasks in the Task's parent TaskGroup, and the specific Task's index in the TaskGroup (0 through BATCH_TASK_COUNT - 1). taskSpec Tasks in the group share the same task spec.

Implementation

const TaskGroup({
  this.parallelism,
  this.permissiveSsh,
  this.requireHostsFile,
  this.schedulingPolicy,
  this.taskCount,
  this.taskCountPerNode,
  this.taskEnvironments,
  required this.taskSpec,
});