Skip to content

beatufied generated stability plots; fixed issue with white lines in … #32

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
merged 1 commit into from
Sep 13, 2015
Merged

beatufied generated stability plots; fixed issue with white lines in … #32

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
28 changes: 18 additions & 10 deletions examples/SWFW/playground.py
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -19,18 +19,21 @@
logger = Log.setup_custom_logger('root')

num_procs = 1

N_s = 100
N_f = 125

# This comes as read-in for the level class
lparams = {}
lparams['restol'] = 1E-12

sparams = {}
sparams['maxiter'] = 2
sparams['maxiter'] = 4

# This comes as read-in for the problem class
pparams = {}
pparams['lambda_s'] = 1j*np.linspace(0,3,100)
pparams['lambda_f'] = 1j*np.linspace(0,8,100)
pparams['lambda_s'] = 1j*np.linspace(0.0, 4.0, N_s)
pparams['lambda_f'] = 1j*np.linspace(0.0, 8.0, N_f)
pparams['u0'] = 1

# Fill description dictionary for easy hierarchy creation
Expand All @@ -40,7 +43,8 @@
description['dtype_u'] = mesh
description['dtype_f'] = rhs_imex_mesh
description['collocation_class'] = collclass.CollGaussLobatto
description['num_nodes'] = [2]
description['num_nodes'] = [3]
description['do_LU'] = False
description['sweeper_class'] = imex_1st_order
description['level_params'] = lparams

Expand All @@ -62,15 +66,19 @@

uex = P.u_exact(Tend)

fig = plt.figure(figsize=(8,8))
plt.pcolor(pparams['lambda_s'].imag, pparams['lambda_f'].imag, np.absolute(uend.values).T,vmin=1,vmax=1.01)
fig = plt.figure(figsize=(4,4))
#pcol = plt.pcolor(pparams['lambda_s'].imag, pparams['lambda_f'].imag, np.absolute(uend.values).T, vmin=0.99, vmax=1.01)
pcol = plt.pcolor(pparams['lambda_s'].imag, pparams['lambda_f'].imag, np.absolute(uend.values).T, vmin=1.0, vmax=2.0)
# plt.pcolor(np.imag(uend.values))
plt.colorbar()
plt.xlabel('$\Delta t \lambda_{slow}$', fontsize=18, labelpad=20)
pcol.set_edgecolor('face')
plt.plot([0, 4], [0, 4], color='w', linewidth=2.5)
#plt.colorbar()
plt.gca().set_xticks([0.0, 1.0, 2.0, 3.0])
plt.xlabel('$\Delta t \lambda_{slow}$', fontsize=18, labelpad=0.0)
plt.ylabel('$\Delta t \lambda_{fast}$', fontsize=18)

plt.show()

#plt.show()
fig.savefig('sdc-fwsw-stability-K'+str(sparams['maxiter'])+'-M'+str(description['num_nodes'][0])+'.pdf', bbox_inches='tight')
print('error at time %s: %s' %(Tend,np.linalg.norm(uex.values-uend.values,np.inf)/np.linalg.norm(uex.values,
np.inf)))