diff --git a/.gitignore b/.gitignore
index 6405099..1fc7913 100644
--- a/.gitignore
+++ b/.gitignore
@@ -10,6 +10,7 @@ tools/__pycache__/
 tools/generation/__pycache__/
 output/
 tests/integration/tmp_output/
+tests/performance/tmp_gen_output/
 output/
 tests/integration/__pycache__/
 fftma_module/gen/build/
diff --git a/tests/performance/conf_gen_512.ini b/tests/performance/conf_gen_512.ini
new file mode 100644
index 0000000..f487be8
--- /dev/null
+++ b/tests/performance/conf_gen_512.ini
@@ -0,0 +1,44 @@
+[General]
+simDir=tests/performance/tmp_gen_output
+startJob=0
+[Iterables]
+p=[10,39,15]
+seeds=[5462,2]
+lc=[4]
+connectivity=[1,2,3]
+variances=[1]
+
+[Generation]
+Nx = 512
+Ny = 512
+Nz = 512
+variogram_type=1
+binary = yes
+kh = 100
+kl = 0.01
+compute_lc = yes
+lcBin=yes
+genera=yes
+
+
+[Connectivity]
+keep_aspect= no
+block_size = 4
+indicators_MinBlockSize =4 
+Max_sample_size = 12
+compGconec= 1
+conec=no
+
+
+[Solver]
+num_of_cores = 1
+ref = 2
+solve = no
+rtol = 1e-4
+
+[K-Postprocess]
+MinBlockSize =1
+Max_sample_size = 4
+kperm=no
+postprocess=no
+SaveVfield=no
\ No newline at end of file
diff --git a/tests/performance/generation.py b/tests/performance/generation.py
index 4725be1..3a62ac6 100644
--- a/tests/performance/generation.py
+++ b/tests/performance/generation.py
@@ -9,7 +9,9 @@ config_file_128 = os.path.abspath("./tests/performance/conf_gen_128.ini")
 
 config_file_256 = os.path.abspath("./tests/performance/conf_gen_256.ini")
 
-CONFIG_FILES = [config_file_64, config_file_128, config_file_256]
+config_file_512 = os.path.abspath("./tests/performance/conf_gen_512.ini")
+
+CONFIG_FILES = [config_file_64, config_file_128, config_file_256, config_file_512]
 
 with Benchmarker() as bench:
 
diff --git a/tools/Prealization.py b/tools/Prealization.py
index 5ce8148..099ca32 100755
--- a/tools/Prealization.py
+++ b/tools/Prealization.py
@@ -8,6 +8,7 @@ from tools.postprocessK.comp_PostKeff import comp_postKeff
 from shutil import copyfile
 from tools.solver.comp_Kperm_scale import comp_kperm_sub
 from tools.solver.Ndar import PetscP
+from tools.generation.fftma_gen import fftmaGenerator
 
 CONFIG_FILE_PATH = 'config.ini' if 'CONFIG_FILE_PATH' not in os.environ else os.environ['CONFIG_FILE_PATH']
 
@@ -33,8 +34,8 @@ def realization(job):
 
 	genera=parser.get('Generation',"genera")
 	if genera!='no':
-		os.system('CONFIG_FILE_PATH=' + CONFIG_FILE_PATH + ' python3 ./tools/generation/fftma_gen.py ' + datadir +' ' + str(job))
-
+		fftmaGenerator(datadir, job, CONFIG_FILE_PATH)
+		#os.system('CONFIG_FILE_PATH=' + CONFIG_FILE_PATH + ' python3 ./tools/generation/fftma_gen.py ' + datadir +' ' + str(job))
 	
 	nr= DotheLoop(job,parser, iterables)[3] -iterables['seeds'][0]
 
diff --git a/tools/generation/fftma_gen.py b/tools/generation/fftma_gen.py
index 8cfee67..2676a0c 100755
--- a/tools/generation/fftma_gen.py
+++ b/tools/generation/fftma_gen.py
@@ -3,15 +3,15 @@ from scipy.special import erf, erfinv
 from scipy.optimize import curve_fit
 from scipy.stats import norm
 from FFTMA import gen
-from config import DotheLoop, get_config	
-from variograma import get_lc
+from tools.generation.config import DotheLoop, get_config	
+from tools.generation.variograma import get_lc
 from scipy.interpolate import interp1d
 import sys
 import time
 import os
-from memory_profiler import profile
+#from memory_profiler import profile
 
-# @profile
+#@profile
 def fftmaGenerator(datadir,job,conffile):
 
 	t0=time.time()
@@ -154,6 +154,6 @@ def binarize(kc,kh,kl,p):
 		kc=np.where(kc<t1, kl,kh)
 	return kc
 
-CONFIG_FILE_PATH = 'config.ini' if 'CONFIG_FILE_PATH' not in os.environ else os.environ['CONFIG_FILE_PATH']
+#CONFIG_FILE_PATH = 'config.ini' if 'CONFIG_FILE_PATH' not in os.environ else os.environ['CONFIG_FILE_PATH']
 
-fftmaGenerator(sys.argv[1],int(sys.argv[2]),CONFIG_FILE_PATH)
+#fftmaGenerator(sys.argv[1],int(sys.argv[2]),CONFIG_FILE_PATH)