Configuration

A configuration data object is passed down to all HydraxMPM objects. This pre-allocates necessary memory for simulations.

Two config types are available:

• MPMConfig: For Material Point Method (MPM) simulations.
• IPConfig: For single integration point element tests.

Modifying config

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MPMConfig

__init__(origin, end, cell_size, num_points=0, shapefunction='cubic', ppc=1, num_steps=0, store_every=0, dt=0.0, default_gpu_id=None, project='', device=None, **kwargs)

Parameters:

• origin (list) –

  domain start

• end (list) –

  domain end

• cell_size (float) –

  cell size of grid

• num_points (int, default: 0 ) –

  number of material points. Defaults to 0.

• shapefunction (str, default: 'cubic' ) –

  Shapefunction type, select:["cubic","linear"]. Defaults to "cubic".

• ppc (int, default: 1 ) –

  number of particles discretized per cell. Defaults to 1.

• num_steps (int, default: 0 ) –

  number of steps to run. Defaults to 0.

• store_every (int, default: 0 ) –

  output every nth step. Defaults to 0.

• dt (float, default: 0.0 ) –

  constant time step. Defaults to 0.0.

• default_gpu_id (int, default: None ) –

  default gpu to run on. Defaults to None.

• project (str, default: '' ) –

  project name. Defaults to "".

• device (int, default: None ) –

  sharding (not implemented yet). Defaults to None.

print_summary()

Print a basic summary of the config

IPConfig

__init__(origin, end, cell_size, num_points=0, shapefunction='cubic', ppc=1, num_steps=0, store_every=0, dt=0.0, default_gpu_id=None, project='', device=None, **kwargs)

Parameters:

• origin (list) –

  domain start

• end (list) –

  domain end

• cell_size (float) –

  cell size of grid

• num_points (int, default: 0 ) –

  number of material points. Defaults to 0.

• shapefunction (str, default: 'cubic' ) –

  Shapefunction type, select:["cubic","linear"]. Defaults to "cubic".

• ppc (int, default: 1 ) –

  number of particles discretized per cell. Defaults to 1.

• num_steps (int, default: 0 ) –

  number of steps to run. Defaults to 0.

• store_every (int, default: 0 ) –

  output every nth step. Defaults to 0.

• dt (float, default: 0.0 ) –

  constant time step. Defaults to 0.0.

• default_gpu_id (int, default: None ) –

  default gpu to run on. Defaults to None.

• project (str, default: '' ) –

  project name. Defaults to "".

• device (int, default: None ) –

  sharding (not implemented yet). Defaults to None.

print_summary()

Print a basic summary of the config

Integration Point Config