diff --git a/matlab/setup.m b/matlab/setup.m
index cf9e1f15734e23ee8cb8b8d20d997e8d5594220d..71b95cdc9136c34260cca173b6053437d6739e35 100644
--- a/matlab/setup.m
+++ b/matlab/setup.m
@@ -73,7 +73,7 @@ switch CO
 end
 COLL.coll_kcut = COLL_KCUT;
 % Time integration and intialization parameters
-TIME_INTEGRATION.numerical_scheme  = '''RK4''';
+TIME_INTEGRATION.numerical_scheme  = ['''',NUMERICAL_SCHEME,''''];
 INITIAL.INIT_OPT = ['''',INIT_OPT,''''];
 INITIAL.ACT_ON_MODES   = ['''',ACT_ON_MODES,''''];
 INITIAL.init_background  = BCKGD0;
diff --git a/wk/analysis_gyacomo.m b/wk/analysis_gyacomo.m
index e637d9dd64a137c983b4c1b7b083cd5039c7cd1b..b7bffafb4897af3121ce9c7601c18a8995eb61bd 100644
--- a/wk/analysis_gyacomo.m
+++ b/wk/analysis_gyacomo.m
@@ -64,7 +64,7 @@ options.INTERP    = 1;
 options.POLARPLOT = 0;
 % options.NAME      = '\phi';
 % options.NAME      = '\omega_z';
-options.NAME     = 'N_e^{00}';
+options.NAME     = 'N_i^{00}';
 % options.NAME      = 'v_x';
 % options.NAME      = 'n_i^{NZ}';
 % options.NAME      = '\Gamma_x';
@@ -95,7 +95,7 @@ options.NAME      = '\phi';
 % options.NAME      = 'T_i';
 % options.NAME      = '\Gamma_x';
 % options.NAME      = 'k^2n_e';
-options.PLAN      = 'xy';
+options.PLAN      = 'kxky';
 % options.NAME      'f_i';
 % options.PLAN      = 'sx';
 options.COMP      = 'avg';
@@ -189,8 +189,8 @@ end
 
 if 0
 %% Mode evolution
-options.NORMALIZED = 0;
-options.K2PLOT = [0.1 0.2 0.3 0.4];
+options.NORMALIZED = 1;
+options.K2PLOT = [0.1 0.5 1.0 2.0 6.0];
 options.TIME   = [00:1200];
 options.NMA    = 1;
 options.NMODES = 5;
diff --git a/wk/header_3D_results.m b/wk/header_3D_results.m
index 5e9a28c9d7d6d7dcfb740205eddcb8a67b992117..aa7ca49072a3e62716ca51e4e6a9eafde7ad28c7 100644
--- a/wk/header_3D_results.m
+++ b/wk/header_3D_results.m
@@ -62,10 +62,10 @@ gyacomodir = '/home/ahoffman/gyacomo/';
 % resdir = 'testcases/miller_example';
 % resdir = 'Miller/128x256x3x2_CBC_dt_5e-3';
 %% CBC Miller
-% resdir = 'GCM_CBC/daint/Miller_GX_comparison';
+resdir = 'GCM_CBC/daint/Miller_GX_comparison';
 %% RK3
-resdir = 'dbg/SSPx_RK3_test';
-resdir = 'dbg/SSPx_RK3_test/RK4';
-resdir = ['results/',resdir];
+% resdir = 'dbg/SSPx_RK3_test';
+% resdir = 'dbg/SSPx_RK3_test/RK4';
+% resdir = ['results/',resdir];
 JOBNUMMIN = 00; JOBNUMMAX = 10;
 run analysis_gyacomo
diff --git a/wk/lin_ETPY.m b/wk/lin_ETPY.m
index 9b6c383a95db4e8c877c6b1f79a8a3ceacc9e7c6..cdc2a5f583946c0b67b2ce17750125100d3135b7 100644
--- a/wk/lin_ETPY.m
+++ b/wk/lin_ETPY.m
@@ -3,57 +3,56 @@
 % from matlab framework. It is meant to run only small problems in linear
 % for benchmark and debugging purpose since it makes matlab "busy"
 %
-% SIMID   = 'lin_ETPY';  % Name of the simulation
-SIMID   = 'dbg';  % Name of the simulation
+SIMID   = 'lin_ETPY';  % Name of the simulation
+% SIMID   = 'dbg';  % Name of the simulation
 RUN     = 1; % To run or just to load
 addpath(genpath('../matlab')) % ... add
 default_plots_options
 PROGDIR  = '/home/ahoffman/gyacomo/';
-% EXECNAME = 'gyacomo_dbg';
-EXECNAME = 'gyacomo';
+EXECNAME = 'gyacomo_dbg';
+% EXECNAME = 'gyacomo';
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 %% Set Up parameters
 CLUSTER.TIME  = '99:00:00'; % allocation time hh:mm:ss
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 %% PHYSICAL PARAMETERS
-NU      = 0.05;           % Collision frequency
+NU      = 0.01;           % Collision frequency
 TAU     = 1.0;            % e/i temperature ratio
-K_Ne    = 2.0;            % ele Density '''
-K_Te    = 0.4;            % ele Temperature '''
-K_Ni    = 2.0;            % ion Density gradient drive
-K_Ti    = 0.4;            % ion Temperature '''
+K_Ne    = 2.5;            % ele Density '''
+K_Te    = K_Ne/4;            % ele Temperature '''
+K_Ni    = K_Ne;            % ion Density gradient drive
+K_Ti    = K_Ni/4;            % ion Temperature '''
 SIGMA_E = 0.0233380;   % mass ratio sqrt(m_a/m_i) (correct = 0.0233380)
 KIN_E   = 1;         % 1: kinetic electrons, 2: adiabatic electrons
 BETA    = 0.0;     % electron plasma beta
 %% GRID PARAMETERS
-P = 4;
+P = 8;
 J = P/2;
 PMAXE   = P;     % Hermite basis size of electrons
 JMAXE   = J;     % Laguerre "
 PMAXI   = P;     % " ions
 JMAXI   = J;     % "
 NX      = 2;    % real space x-gridpoints
-NY      = 50;     %     ''     y-gridpoints
+NY      = 100;     %     ''     y-gridpoints
 LX      = 2*pi/0.8;   % Size of the squared frequency domain
-LY      = 2*pi/0.05;     % Size of the squared frequency domain
+LY      = 200;%2*pi/0.05;     % Size of the squared frequency domain
 NZ      = 1;    % number of perpendicular planes (parallel grid)
 NPOL    = 1;
 SG      = 0;     % Staggered z grids option
 %% GEOMETRY
-GEOMETRY= 'Z-pinch';
+GEOMETRY= 'Z-pinch'; % Z-pinch overwrites q0, shear and eps
 Q0      = 1.4;    % safety factor
 SHEAR   = 0.8;    % magnetic shear
-KAPPA   = 1.0;    % elongation
+KAPPA   = 0.0;    % elongation
 DELTA   = 0.0;    % triangularity
 ZETA    = 0.0;    % squareness
 NEXC    = 1;      % To extend Lx if needed (Lx = Nexc/(kymin*shear))
 EPS     = 0.18;   % inverse aspect ratio
 %% TIME PARMETERS
-TMAX    = 100;  % Maximal time unit
+TMAX    = 500;  % Maximal time unit
 DT      = 1e-2;   % Time step
 SPS0D   = 1;      % Sampling per time unit for 2D arrays
-SPS2D   = 0;      % Sampling per time unit for 2D arrays
+SPS2D   = -1;      % Sampling per time unit for 2D arrays
 SPS3D   = 1;      % Sampling per time unit for 2D arrays
 SPS5D   = 1/5;    % Sampling per time unit for 5D arrays
 SPSCP   = 0;    % Sampling per time unit for checkpoints
@@ -63,13 +62,14 @@ LINEARITY = 'linear';   % activate non-linearity (is cancelled if KXEQ0 = 1)
 % Collision operator
 % (LB:L.Bernstein, DG:Dougherty, SG:Sugama, LR: Lorentz, LD: Landau)
 CO      = 'DG';
-GKCO    = 0; % gyrokinetic operator
+GKCO    = 1; % gyrokinetic operator
 ABCO    = 1; % interspecies collisions
 INIT_ZF = 0; ZF_AMP = 0.0;
 CLOS    = 0;   % Closure model (0: =0 truncation, 1: v^Nmax closure (p+2j<=Pmax))s
 NL_CLOS = 0;   % nonlinear closure model (-2:nmax=jmax; -1:nmax=jmax-j; >=0:nmax=NL_CLOS)
 KERN    = 0;   % Kernel model (0 : GK)
-INIT_OPT= 'phi';   % Start simulation with a noisy mom00/phi/allmom
+INIT_OPT= 'mom00';   % Start simulation with a noisy mom00/phi/allmom
+NUMERICAL_SCHEME = 'RK2'; % RK2,SSPx_RK2,RK3,SSP_RK3,SSPx_RK3,IMEX_SSP2,ARK2,RK4,DOPRI5
 %% OUTPUTS
 W_DOUBLE = 1;
 W_GAMMA  = 1; W_HF     = 1;
@@ -85,7 +85,7 @@ INIT_BLOB = 0; WIPE_TURB = 0; ACT_ON_MODES = 0;
 MU_X    = MU;     %
 MU_Y    = MU;     %
 N_HD    = 4;
-MU_Z    = 0.0;     %
+MU_Z    = 2.0;     %
 MU_P    = 0.0;     %
 MU_J    = 0.0;     %
 LAMBDAD = 0.0;
diff --git a/wk/lin_ITG.m b/wk/lin_ITG.m
index ebca810e6abee81ea9bba946a9a3cc6e9aa056b4..339b183351bc6791c41f482e36544a33835d264f 100644
--- a/wk/lin_ITG.m
+++ b/wk/lin_ITG.m
@@ -19,9 +19,9 @@ CLUSTER.TIME  = '99:00:00'; % allocation time hh:mm:ss
 %% PHYSICAL PARAMETERS
 NU      = 0.05;           % Collision frequency
 TAU     = 1.0;            % e/i temperature ratio
-K_Ne    = 0*2.22;            % ele Density '''
+K_Ne    = 2.22;            % ele Density '''
 K_Te    = 6.96;            % ele Temperature '''
-K_Ni    = 0*2.22;            % ion Density gradient drive
+K_Ni    = 2.22;            % ion Density gradient drive
 K_Ti    = 6.96;            % ion Temperature '''
 SIGMA_E = 0.05196152422706632;   % mass ratio sqrt(m_a/m_i) (correct = 0.0233380)
 % SIGMA_E = 0.0233380;   % mass ratio sqrt(m_a/m_i) (correct = 0.0233380)
@@ -35,15 +35,15 @@ JMAXE   = J;     % Laguerre "
 PMAXI   = P;     % " ions
 JMAXI   = J;     % "
 NX      = 20;    % real space x-gridpoints
-NY      = 2;     %     ''     y-gridpoints
+NY      = 20;     %     ''     y-gridpoints
 LX      = 2*pi/0.8;   % Size of the squared frequency domain
-LY      = 2*pi/0.3;     % Size of the squared frequency domain
+LY      = 2*pi/0.05;     % Size of the squared frequency domain
 NZ      = 32;    % number of perpendicular planes (parallel grid)
 NPOL    = 1;
 SG      = 0;     % Staggered z grids option
 %% GEOMETRY
-% GEOMETRY= 's-alpha';
-GEOMETRY= 'miller';
+GEOMETRY= 's-alpha';
+% GEOMETRY= 'miller';
 Q0      = 1.4;    % safety factor
 SHEAR   = 0.8;    % magnetic shear
 KAPPA   = 1.0;    % elongation
@@ -52,10 +52,10 @@ ZETA    = 0.0;    % squareness
 NEXC    = 1;      % To extend Lx if needed (Lx = Nexc/(kymin*shear))
 EPS     = 0.18;   % inverse aspect ratio
 %% TIME PARMETERS
-TMAX    = 25;  % Maximal time unit
-DT      = 3e-3;   % Time step
+TMAX    = 20;  % Maximal time unit
+DT      = 1e-2;   % Time step
 SPS0D   = 1;      % Sampling per time unit for 2D arrays
-SPS2D   = 0;      % Sampling per time unit for 2D arrays
+SPS2D   = -1;      % Sampling per time unit for 2D arrays
 SPS3D   = 5;      % Sampling per time unit for 2D arrays
 SPS5D   = 1/5;    % Sampling per time unit for 5D arrays
 SPSCP   = 0;    % Sampling per time unit for checkpoints
@@ -72,6 +72,7 @@ CLOS    = 0;   % Closure model (0: =0 truncation, 1: v^Nmax closure (p+2j<=Pmax)
 NL_CLOS = 0;   % nonlinear closure model (-2:nmax=jmax; -1:nmax=jmax-j; >=0:nmax=NL_CLOS)
 KERN    = 0;   % Kernel model (0 : GK)
 INIT_OPT= 'mom00';   % Start simulation with a noisy mom00/phi/allmom
+NUMERICAL_SCHEME = 'RK3'; % RK2,SSPx_RK2,RK3,SSP_RK3,SSPx_RK3,IMEX_SSP2,ARK2,RK4,DOPRI5
 %% OUTPUTS
 W_DOUBLE = 1;
 W_GAMMA  = 1; W_HF     = 1;
@@ -91,10 +92,11 @@ MU_Z    = 2.0;     %
 MU_P    = 0.0;     %
 MU_J    = 0.0;     %
 LAMBDAD = 0.0;
-NOISE0  = 0.0e-5; % Init noise amplitude
-BCKGD0  = 1.0;    % Init background
+NOISE0  = 1.0e-5; % Init noise amplitude
+BCKGD0  = 0.0;    % Init background
 GRADB   = 1.0;
 CURVB   = 1.0;
+COLL_KCUT = 1000;
 %%-------------------------------------------------------------------------
 %% RUN
 setup
diff --git a/wk/lin_RHT.m b/wk/lin_RHT.m
index dcdcc7529ab274daa0bd39c84c156e49604b2cf6..d9a230096da7fac82936e4e88166f68501fcd1fe 100644
--- a/wk/lin_RHT.m
+++ b/wk/lin_RHT.m
@@ -7,24 +7,24 @@ SIMID   = 'lin_RHT';  % Name of the simulation
 RUN     = 1; % To run or just to load
 addpath(genpath('../matlab')) % ... add
 default_plots_options
-HELAZDIR = '/home/ahoffman/HeLaZ/';
-% EXECNAME = 'helaz3';
-EXECNAME = 'helaz3';
+GYACOMODIR = '/home/ahoffman/gyacomo/';
+% EXECNAME = 'gyacomo_dbg';
+EXECNAME = 'gyacomo';
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 %% Set Up parameters
 CLUSTER.TIME  = '99:00:00'; % allocation time hh:mm:ss
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 %% PHYSICAL PARAMETERS
-NU      = 0.0;           % Collision frequency
+NU      = 0.1;           % Collision frequency
 TAU     = 1.0;            % e/i temperature ratio
-K_Ne    = 1.0;            % ele Density '''
-K_Te    = 4.0;            % ele Temperature '''
-K_Ni    = 2.0;            % ion Density gradient drive
-K_Ti    = 8.0;            % ion Temperature '''
+K_Ne    = 0.0;            % ele Density '''
+K_Te    = 0.0;            % ele Temperature '''
+K_Ni    = 0.0;            % ion Density gradient drive
+K_Ti    = 0.0;            % ion Temperature '''
 SIGMA_E = 0.5;%0.05196152422706632;   % mass ratio sqrt(m_a/m_i) (correct = 0.0233380)
 % SIGMA_E = 0.0233380;   % mass ratio sqrt(m_a/m_i) (correct = 0.0233380)
-KIN_E   = 1;         % 1: kinetic electrons, 2: adiabatic electrons
-BETA    = 0.05;     % electron plasma beta
+KIN_E   = 0;         % 1: kinetic electrons, 2: adiabatic electrons
+BETA    = 0.00;     % electron plasma beta
 %% GRID PARAMETERS
 P = 4;
 J = P/2;
@@ -34,27 +34,29 @@ PMAXI   = P;     % " ions
 JMAXI   = J;     % "
 NX      = 2;    % real space x-gridpoints
 NY      = 2;     %     ''     y-gridpoints
-LX      = 2*pi/0.0628;   % Size of the squared frequency domain
-LY      = 2*pi/0.1;     % Size of the squared frequency domain
+LX      = pi/2.5;   % Size of the squared frequency domain
+LY      = 2*pi/0.5;     % Size of the squared frequency domain
 NZ      = 16;    % number of perpendicular planes (parallel grid)
 NPOL    = 1;
 SG      = 0;     % Staggered z grids option
 %% GEOMETRY
 % GEOMETRY= 'Z-pinch'; % Z-pinch overwrites q0, shear and eps
-GEOMETRY= 's-alpha';
-% GEOMETRY= 'circular';
+% GEOMETRY= 's-alpha';
+GEOMETRY= 'miller';
 Q0      = 1.4;    % safety factor
-SHEAR   = 0.0;    % magnetic shear
-NEXC    = 1;      % To extend Lx if needed (Lx = Nexc/(kymin*shear))
+SHEAR   = 0.8;    % magnetic shear
+KAPPA   = 1.0;    % elongation
+DELTA   = 0.0;    % triangularity
+ZETA    = 0.0;    % squareness
+NEXC    = 0;      % To extend Lx if needed (Lx = Nexc/(kymin*shear)) %0: adaptive
 EPS     = 0.18;   % inverse aspect ratio
 %% TIME PARMETERS
-TMAX    = 10;  % Maximal time unit
-DT      = 5e-3;   % Time step
+TMAX    = 50;  % Maximal time unit
+DT      = 1e-2;   % Time step
 SPS0D   = 1;      % Sampling per time unit for 2D arrays
-SPS2D   = 0;      % Sampling per time unit for 2D arrays
-SPS3D   = 10;      % Sampling per time unit for 2D arrays
+SPS2D   = -1;      % Sampling per time unit for 2D arrays
+SPS3D   = 5;      % Sampling per time unit for 2D arrays
 SPS5D   = 1/5;    % Sampling per time unit for 5D arrays
-SPSCP   = 0;    % Sampling per time unit for checkpoints
 JOB2LOAD= -1;
 %% OPTIONS
 LINEARITY = 'linear';   % activate non-linearity (is cancelled if KXEQ0 = 1)
@@ -68,6 +70,7 @@ CLOS    = 0;   % Closure model (0: =0 truncation, 1: v^Nmax closure (p+2j<=Pmax)
 NL_CLOS = 0;   % nonlinear closure model (-2:nmax=jmax; -1:nmax=jmax-j; >=0:nmax=NL_CLOS)
 KERN    = 0;   % Kernel model (0 : GK)
 INIT_OPT= 'mom00';   % Start simulation with a noisy mom00/phi/allmom
+NUMERICAL_SCHEME = 'RK4'; % RK2,SSPx_RK2,RK3,SSP_RK3,SSPx_RK3,IMEX_SSP2,ARK2,RK4,DOPRI5
 %% OUTPUTS
 W_DOUBLE = 1;
 W_GAMMA  = 1; W_HF     = 1;
@@ -91,14 +94,14 @@ NOISE0  = 0.0e-5; % Init noise amplitude
 BCKGD0  = 1.0;    % Init background
 GRADB   = 1.0;
 CURVB   = 1.0;
+COLL_KCUT = 1000;
 %%-------------------------------------------------------------------------
 %% RUN
 setup
 % system(['rm fort*.90']);
 % Run linear simulation
 if RUN
-%     system(['cd ../results/',SIMID,'/',PARAMS,'/; time mpirun -np 4 ',HELAZDIR,'bin/',EXECNAME,' 1 4 1 0; cd ../../../wk'])
-%     system(['cd ../results/',SIMID,'/',PARAMS,'/; mpirun -np 4 ',HELAZDIR,'bin/',EXECNAME,' 1 4 1 0; cd ../../../wk'])
+%     system(['cd ../results/',SIMID,'/',PARAMS,'/; mpirun -np 4 ',GYACOMODIR,'bin/',EXECNAME,' 1 2 2 0; cd ../../../wk'])
     system(['cd ../results/',SIMID,'/',PARAMS,'/; mpirun -np 1 ',HELAZDIR,'bin/',EXECNAME,' 1 1 1 0; cd ../../../wk'])
 %     system(['cd ../results/',SIMID,'/',PARAMS,'/; mpirun -np 6 ',HELAZDIR,'bin/',EXECNAME,' 1 2 3 0; cd ../../../wk'])
 %     system(['cd ../results/',SIMID,'/',PARAMS,'/; mpirun -np 6 ',HELAZDIR,'bin/',EXECNAME,' 1 6 1 0; cd ../../../wk'])
@@ -107,7 +110,7 @@ end
 %% Load results
 %%
 filename = [SIMID,'/',PARAMS,'/'];
-LOCALDIR  = [HELAZDIR,'results/',filename,'/'];
+LOCALDIR  = [GYACOMODIR,'results/',filename,'/'];
 % Load outputs from jobnummin up to jobnummax
 JOBNUMMIN = 00; JOBNUMMAX = 00;
 data = compile_results(LOCALDIR,JOBNUMMIN,JOBNUMMAX); %Compile the results from first output found to JOBNUMMAX if existing
@@ -164,13 +167,13 @@ end
 if 0
 %% Mode evolution
 options.NORMALIZED = 0;
-options.K2PLOT = 1;
-options.TIME   = [0:1000];
+options.K2PLOT = 2;
+options.TIME   = [0:50];
 options.NMA    = 1;
 options.NMODES = 1;
 options.iz     = 'avg';
 fig = mode_growth_meter(data,options);
-save_figure(data,fig,'.png')
+% save_figure(data,fig,'.png')
 end