How to set temperature in the dislotungsten model

[prnvrvs]

Hello DAMASK team,
I am trying to run a simulation of the dislotungsten tungsten model and want the initial temperature of the material to be 500 K.
So far, I have tried adding:
T_ref: 500
to the material configuration,
and in .vti file as well

but I do not see any change in the resulting yield point.
Could you please advise:
What is the correct parameter to set the initial temperature in the grid solver?

homogenization:
  SX:
    N_constituents: 1
    mechanical: {type: pass}

phase:
  Tungsten:
    lattice: cI
    rho: 19300.0
    mechanical:
      output: [F, P, F_e, F_p, L_p, O, rho_mob, rho_dip, gamma_sl, Lambda_sl, tau_pass]
      elastic:
        type: Hooke
        C_11: 524.3e+9
        C_11,T: -4.794e+7
        C_12: 205.1e+9
        C_12,T: -2.836e+6
        C_44: 160.7e+9
        C_44,T: -1.269e+7

        T_ref: 500
      plastic:
        type: dislotungsten
        N_sl: [12]
        b_sl: [2.72e-10]
        rho_mob_0: [1.0e+10]
        rho_dip_0: [1.0e+10]
        Q_s: [2.61154e-19]
        B: [8.3e-5]
        omega: [9.1e+11]
        T_ref: 500
        p_sl: [0.86]
        q_sl: [1.69]
        tau_Peierls: [2.03e+9]
        h: [2.566e-10]
        h_sl-sl: [0.009, 0.72, 0.009, 0.05, 0.05, 0.06, 0.09]
        w: [2.992e-9]
        a_non-Schmid: [[0.938, 0.71, 4.43]]
        i_sl: [1]
        D: 1.0e+20
        D_a: 1.0
        D_0: 0.0
        f_at: 1
        Q_cl: 1.0
material:
  - homogenization: SX
    constituents:
      - phase: Tungsten
        v: 1.0
        O: [1,0.0,0.0,0.0]

import numpy as np
import damask

# 1. Define the grid resolution (voxels)
cells = [32, 32, 32]

# 2. Define the physical size (in meters)
size = [1.0e-3, 1.0e-3, 1.0e-3]

# 3. Create the material ID array (all 0 for single crystal)
# Note: Ensure the shape matches cells
material_ids = np.zeros(cells, dtype=int)

# 4. Initialize GeomGrid (Standard for DAMASK 3.x)
grid = damask.GeomGrid(material=material_ids, size=size,initial_conditions={'T':500})
# 5. Save as a .vti file
grid.save('single_crystal.vti')

print("Successfully created single_crystal.vti")

My load.yaml looks like

solver:
  mechanical: spectral_basic
loadstep:
  - boundary_conditions:
      mechanical:
        dot_F: [[x, 0, 0],
                [0, x, 0],
                [0, 0, 1e-3]]
        P: [[0, x, x],
            [x, 0, x],
            [x, x, x]]
    discretization:
      t: 2
      N: 100
    f_out: 5