diff --git a/.github/workflows/madgraph_launch_test.yml b/.github/workflows/madgraph_launch_test.yml
new file mode 100644
index 0000000000..39e0f89f43
--- /dev/null
+++ b/.github/workflows/madgraph_launch_test.yml
@@ -0,0 +1,112 @@
+# WARNING THIS FILE IS AUTOGENERATED -> edit test_simd_madevent.template
+
+
+# This is a basic workflow to help you get started with Actions
+
+name: running acceptance test
+# Controls when the workflow will run
+#    branches: [ main LTS ]
+on:
+  # Triggers the workflow on push or pull request events but only for the 3.4.0 branch
+  push:
+    paths-ignore:
+      - 'docs/**'
+#      - '.github/**'
+
+  # Allows you to run this workflow manually from the Actions tab
+  workflow_dispatch:
+    inputs:
+      message:
+        description: 'running acceptance test'     
+        required: true
+
+env:
+  commitmsg: ${{ github.event.head_commit.message }}
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+# A workflow run is made up of one or more jobs that can run sequentially or in parallel
+jobs:
+  # This workflow contains a single job called "build"
+
+  simd_cpp_heft_ggh_double:
+    # The type of runner that the job will run on
+    runs-on: ubuntu-latest
+
+    # Steps represent a sequence of tasks that will be executed as part of the job
+    steps:
+      # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
+      - uses: actions/checkout@v2
+        with:
+          submodules: 'true'
+      
+      # Runs a set of commands using the runners shell
+      - name: test one of the test testIO_AcceptanceProcOutputIOTests
+        run: |
+            cd $GITHUB_WORKSPACE
+            cd MG5aMC/mg5amcnlo/
+            cp input/.mg5_configuration_default.txt input/mg5_configuration.txt
+            cp Template/LO/Source/.make_opts Template/LO/Source/make_opts
+            ./tests/test_manager.py -p./PLUGIN/CUDACPP_OUTPUT/acceptance_tests/ test_simd_cpp_heft_ggh_double 
+
+  simd_cpp_pptt_mixed:
+    # The type of runner that the job will run on
+    runs-on: ubuntu-latest
+
+    # Steps represent a sequence of tasks that will be executed as part of the job
+    steps:
+      # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
+      - uses: actions/checkout@v2
+        with:
+          submodules: 'true'
+      
+      # Runs a set of commands using the runners shell
+      - name: test one of the test testIO_AcceptanceProcOutputIOTests
+        run: |
+            cd $GITHUB_WORKSPACE
+            cd MG5aMC/mg5amcnlo/
+            cp input/.mg5_configuration_default.txt input/mg5_configuration.txt
+            cp Template/LO/Source/.make_opts Template/LO/Source/make_opts
+            ./tests/test_manager.py -p./PLUGIN/CUDACPP_OUTPUT/acceptance_tests/ test_simd_cpp_pptt_mixed 
+
+  simd_cpp_eemumua_float:
+    # The type of runner that the job will run on
+    runs-on: ubuntu-latest
+
+    # Steps represent a sequence of tasks that will be executed as part of the job
+    steps:
+      # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
+      - uses: actions/checkout@v2
+        with:
+          submodules: 'true'
+      
+      # Runs a set of commands using the runners shell
+      - name: test one of the test testIO_AcceptanceProcOutputIOTests
+        run: |
+            cd $GITHUB_WORKSPACE
+            cd MG5aMC/mg5amcnlo/
+            cp input/.mg5_configuration_default.txt input/mg5_configuration.txt
+            cp Template/LO/Source/.make_opts Template/LO/Source/make_opts
+            ./tests/test_manager.py -p./PLUGIN/CUDACPP_OUTPUT/acceptance_tests/ test_simd_cpp_eemumua_float 
+
+  simd_cpp_vector_size:
+    # The type of runner that the job will run on
+    runs-on: ubuntu-latest
+
+    # Steps represent a sequence of tasks that will be executed as part of the job
+    steps:
+      # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
+      - uses: actions/checkout@v2
+        with:
+          submodules: 'true'
+      
+      # Runs a set of commands using the runners shell
+      - name: test one of the test testIO_AcceptanceProcOutputIOTests
+        run: |
+            cd $GITHUB_WORKSPACE
+            cd MG5aMC/mg5amcnlo/
+            cp input/.mg5_configuration_default.txt input/mg5_configuration.txt
+            cp Template/LO/Source/.make_opts Template/LO/Source/make_opts
+            ./tests/test_manager.py -p./PLUGIN/CUDACPP_OUTPUT/acceptance_tests/ test_simd_cpp_vector_size 
diff --git a/epochX/cudacpp/CODEGEN/PLUGIN/CUDACPP_SA_OUTPUT/acceptance_tests/create_acceptance_from_file.py b/epochX/cudacpp/CODEGEN/PLUGIN/CUDACPP_SA_OUTPUT/acceptance_tests/create_acceptance_from_file.py
new file mode 100644
index 0000000000..93b02d64b2
--- /dev/null
+++ b/epochX/cudacpp/CODEGEN/PLUGIN/CUDACPP_SA_OUTPUT/acceptance_tests/create_acceptance_from_file.py
@@ -0,0 +1,128 @@
+####
+## Automatic creation of CI/CD for the plugin repo
+## and automatic test in madgraph format style
+## test can be added easily by adding a file in the directory
+##  simple_cross_check
+## format of the file is the cmd file to pass to the code
+## two type of additional metadata line are present
+## #title provide the documentation information for the unittest (docstring)
+## #check RUN_NAME CROSS ERROR NB_EVENT provide the target cross-section/error/requested event
+
+
+import os
+import glob
+
+curr_dir = os.path.dirname(__file__)
+pjoin = os.path.join
+template_runtest = """
+# WARNING THIS FILE IS AUTOGENERATED -> edit test_simd_madevent.template
+    def test_%(name)s(self):
+        \"\"\"%(doc)s\"\"\"
+
+        if logging.getLogger('madgraph').level <= 20:
+            stdout=None
+            stderr=None
+        else:
+            devnull =open(os.devnull,'w')
+            stdout=devnull
+            stderr=devnull
+            
+        try:
+            shutil.rmtree('/tmp/MGPROCESS/')
+        except Exception as error:
+            pass
+        
+        cmd = \"\"\"%(cmd)s
+                 \"\"\" %%self.run_dir
+
+        open(pjoin(self.path, 'mg5_cmd'),'w').write(cmd)
+        
+        subprocess.call([sys.executable, pjoin(MG5DIR, 'bin','mg5_aMC'), 
+                         pjoin(self.path, 'mg5_cmd')],
+                         #cwd=self.path,
+                        stdout=stdout, stderr=stderr)
+"""
+
+template_onecheck = """
+        self.check_parton_output(cross=%(cross)s, error=%(err)s, run_name='%(run_name)s', html=%(html)s)
+        event = '%%s/Events/%(run_name)s/unweighted_events.lhe' %% self.run_dir
+        if not os.path.exists(event):
+            misc.gunzip(event)
+        
+        lhefile = lhe_parser.EventFile(event)
+        nb_event = 0
+        for event in lhe_parser.EventFile(event):
+            event.check()
+            nb_event+=1
+
+        self.assertEqual(nb_event, %(nb_event)s)"""
+
+
+def create_test_simd_madevent():
+
+    text = "# WARNING THIS FILE IS AUTOGENERATED -> edit test_simd_madevent.template\n\n\n"
+    text += open(pjoin(curr_dir, 'test_simd_madevent.template'),'r').read()
+
+    for filename in os.listdir(pjoin(curr_dir, 'simple_cross_check')):
+        
+        opt = {}
+        opt['name'] = filename
+        opt['cmd'] = open(pjoin(curr_dir, 'simple_cross_check',filename)).read()
+        opt['doc'] = "\n".join([line[5:] for line in opt['cmd'].split('\n') if line.startswith('#title')])
+
+        text += template_runtest % opt
+
+        checks = [line.split() for line in opt['cmd'].split('\n') if line.startswith('#check')]
+                  
+        for i, check in enumerate(checks):
+            _, name, cross, err, nb_event = check
+            opt['run_name'] = name
+            opt['cross'] = cross
+            opt['err'] = err
+            opt['nb_event'] = nb_event
+            opt['html'] = 'True' if i==0 else 'False'
+        
+            text += template_onecheck % opt
+
+    open(pjoin(curr_dir, 'test_simd_madevent.py'), 'w').write(text)
+
+template_one_cicd="""
+  %(name)s:
+    # The type of runner that the job will run on
+    runs-on: ubuntu-latest
+
+    # Steps represent a sequence of tasks that will be executed as part of the job
+    steps:
+      # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
+      - uses: actions/checkout@v2
+        with:
+          submodules: 'true'
+      
+      # Runs a set of commands using the runners shell
+      - name: test one of the test testIO_AcceptanceProcOutputIOTests
+        run: |
+            cd $GITHUB_WORKSPACE
+            cd MG5aMC/mg5amcnlo/
+            cp input/.mg5_configuration_default.txt input/mg5_configuration.txt
+            cp Template/LO/Source/.make_opts Template/LO/Source/make_opts
+            ./tests/test_manager.py -p./PLUGIN/CUDACPP_OUTPUT/acceptance_tests/ test_%(name)s 
+"""
+
+def create_cicd():
+
+    text = "# WARNING THIS FILE IS AUTOGENERATED -> edit test_simd_madevent.template\n\n\n"
+    text += open(pjoin(curr_dir, 'madgraph_launch.template'),'r').read()
+ 
+    for filename in os.listdir(pjoin(curr_dir, 'simple_cross_check')): 
+        text += template_one_cicd % {'name': filename}
+    
+    GITDIR =pjoin(os.path.realpath(curr_dir), os.path.pardir,os.path.pardir,os.path.pardir,os.path.pardir,os.path.pardir,os.path.pardir)
+    GITDIR = os.path.realpath(GITDIR) 
+    open(pjoin(GITDIR, '.github', 'workflows', 'madgraph_launch_test.yml'), 'w').write(text)
+
+
+if __name__ == '__main__':
+    create_test_simd_madevent()
+    create_cicd()
+
+
diff --git a/epochX/cudacpp/CODEGEN/PLUGIN/CUDACPP_SA_OUTPUT/acceptance_tests/madgraph_launch.template b/epochX/cudacpp/CODEGEN/PLUGIN/CUDACPP_SA_OUTPUT/acceptance_tests/madgraph_launch.template
new file mode 100644
index 0000000000..7a8a08aba9
--- /dev/null
+++ b/epochX/cudacpp/CODEGEN/PLUGIN/CUDACPP_SA_OUTPUT/acceptance_tests/madgraph_launch.template
@@ -0,0 +1,29 @@
+# This is a basic workflow to help you get started with Actions
+
+name: running acceptance test
+# Controls when the workflow will run
+#    branches: [ main LTS ]
+on:
+  # Triggers the workflow on push or pull request events but only for the 3.4.0 branch
+  push:
+    paths-ignore:
+      - 'docs/**'
+#      - '.github/**'
+
+  # Allows you to run this workflow manually from the Actions tab
+  workflow_dispatch:
+    inputs:
+      message:
+        description: 'running acceptance test'     
+        required: true
+
+env:
+  commitmsg: ${{ github.event.head_commit.message }}
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+# A workflow run is made up of one or more jobs that can run sequentially or in parallel
+jobs:
+  # This workflow contains a single job called "build"
diff --git a/epochX/cudacpp/CODEGEN/PLUGIN/CUDACPP_SA_OUTPUT/acceptance_tests/simple_cross_check/simd_cpp_eemumua_float b/epochX/cudacpp/CODEGEN/PLUGIN/CUDACPP_SA_OUTPUT/acceptance_tests/simple_cross_check/simd_cpp_eemumua_float
new file mode 100644
index 0000000000..5b63dd1bff
--- /dev/null
+++ b/epochX/cudacpp/CODEGEN/PLUGIN/CUDACPP_SA_OUTPUT/acceptance_tests/simple_cross_check/simd_cpp_eemumua_float
@@ -0,0 +1,10 @@
+#title check eemumua in single precision
+import model sm
+                 set automatic_html_opening False --no_save
+                 set notification_center False --no_save
+                 generate e+ e- > mu+ mu- a
+                 output madevent_simd %s -f -nojpeg
+                 launch
+                 set nevents 100
+                 set floating_type f
+#check run_01 0.0266 0.0002854 100
diff --git a/epochX/cudacpp/CODEGEN/PLUGIN/CUDACPP_SA_OUTPUT/acceptance_tests/simple_cross_check/simd_cpp_heft_ggh_double b/epochX/cudacpp/CODEGEN/PLUGIN/CUDACPP_SA_OUTPUT/acceptance_tests/simple_cross_check/simd_cpp_heft_ggh_double
new file mode 100644
index 0000000000..21ea1875b0
--- /dev/null
+++ b/epochX/cudacpp/CODEGEN/PLUGIN/CUDACPP_SA_OUTPUT/acceptance_tests/simple_cross_check/simd_cpp_heft_ggh_double
@@ -0,0 +1,10 @@
+#title testing a HEFT process gg>aa in double precision
+import model heft
+                 set automatic_html_opening False --no_save
+                 set notification_center False --no_save
+                 generate g g > h > a a
+                 output madevent_simd %s -f -nojpeg
+                 launch
+                 set nevents 100
+                 set floating_type d
+#check run_01 0.01859 0.0002853789088650386 100
diff --git a/epochX/cudacpp/CODEGEN/PLUGIN/CUDACPP_SA_OUTPUT/acceptance_tests/simple_cross_check/simd_cpp_pptt_mixed b/epochX/cudacpp/CODEGEN/PLUGIN/CUDACPP_SA_OUTPUT/acceptance_tests/simple_cross_check/simd_cpp_pptt_mixed
new file mode 100644
index 0000000000..8cd87df8f1
--- /dev/null
+++ b/epochX/cudacpp/CODEGEN/PLUGIN/CUDACPP_SA_OUTPUT/acceptance_tests/simple_cross_check/simd_cpp_pptt_mixed
@@ -0,0 +1,10 @@
+#title check ggtt within mixed mode
+import model sm
+                 set automatic_html_opening False --no_save
+                 set notification_center False --no_save
+                 generate p p > t t~
+                 output madevent_simd %s -f -nojpeg
+                 launch
+                 set nevents 100
+                 set floating_type m
+#check run_01 505.5 2.749 100
diff --git a/epochX/cudacpp/CODEGEN/PLUGIN/CUDACPP_SA_OUTPUT/acceptance_tests/simple_cross_check/simd_cpp_vector_size b/epochX/cudacpp/CODEGEN/PLUGIN/CUDACPP_SA_OUTPUT/acceptance_tests/simple_cross_check/simd_cpp_vector_size
new file mode 100644
index 0000000000..10396147fd
--- /dev/null
+++ b/epochX/cudacpp/CODEGEN/PLUGIN/CUDACPP_SA_OUTPUT/acceptance_tests/simple_cross_check/simd_cpp_vector_size
@@ -0,0 +1,17 @@
+#title: check that multiple vector size returns the same value
+import model sm
+set automatic_html_opening False --no_save
+set notification_center False --no_save
+generate p p > t t~
+output madevent_simd %s -f -nojpeg
+launch  
+set nevents 100
+set floating_type m
+set vector_size 16
+launch
+set vector_size 32
+launch
+set vector_size 64
+#check run_01 505.5 2.749 100
+#check run_02 505.5 2.749 100 
+#check run_03 505.5 2.749 100
diff --git a/epochX/cudacpp/CODEGEN/PLUGIN/CUDACPP_SA_OUTPUT/acceptance_tests/test_simd_madevent.py b/epochX/cudacpp/CODEGEN/PLUGIN/CUDACPP_SA_OUTPUT/acceptance_tests/test_simd_madevent.py
new file mode 100644
index 0000000000..c820e9a1f9
--- /dev/null
+++ b/epochX/cudacpp/CODEGEN/PLUGIN/CUDACPP_SA_OUTPUT/acceptance_tests/test_simd_madevent.py
@@ -0,0 +1,346 @@
+# WARNING THIS FILE IS AUTOGENERATED -> edit test_simd_madevent.template
+
+
+################################################################################
+#
+# Copyright (c) 2009 The MadGraph5_aMC@NLO Development team and Contributors
+#
+# This file is a part of the MadGraph5_aMC@NLO project, an application which 
+# automatically generates Feynman diagrams and matrix elements for arbitrary
+# high-energy processes in the Standard Model and beyond.
+#
+# It is subject to the MadGraph5_aMC@NLO license which should accompany this 
+# distribution.
+#
+# For more information, visit madgraph.phys.ucl.ac.be and amcatnlo.web.cern.ch
+#
+################################################################################
+from __future__ import division
+from __future__ import absolute_import
+import subprocess
+import unittest
+import os
+import re
+import shutil
+import sys
+import logging
+import time
+import tempfile
+import math
+import madgraph
+
+
+logger = logging.getLogger('test_cmd')
+
+import tests.unit_tests.iolibs.test_file_writers as test_file_writers
+
+import madgraph.interface.master_interface as MGCmd
+import madgraph.interface.madevent_interface as MECmd
+import madgraph.interface.launch_ext_program as launch_ext
+import madgraph.iolibs.files as files
+
+import madgraph.various.misc as misc
+import madgraph.various.lhe_parser as lhe_parser
+import madgraph.various.banner as banner_mod
+import madgraph.various.lhe_parser as lhe_parser
+import madgraph.various.banner as banner
+
+_file_path = os.path.split(os.path.dirname(os.path.realpath(__file__)))[0]
+_pickle_path =os.path.join(_file_path, 'input_files')
+
+from madgraph import MG4DIR, MG5DIR, MadGraph5Error, InvalidCmd
+
+from tests.acceptance_tests.test_cmd_madevent import check_html_page
+pjoin = os.path.join
+
+
+#===============================================================================
+# TestCmd
+#===============================================================================
+class TestCPPfromfile(unittest.TestCase): # inherit from upstream test_cmd_madevent
+    """test that we can launch everything from a single file"""
+
+
+    def setUp(self):
+        
+        self.debuging = unittest.debug
+        if self.debuging:
+            self.path = pjoin(MG5DIR, 'ACC_TEST')
+            if os.path.exists(self.path):
+                 shutil.rmtree(self.path)
+            os.mkdir(self.path) 
+        else:
+            self.path = tempfile.mkdtemp(prefix='acc_test_mg5')
+        self.run_dir = pjoin(self.path, 'MGPROC') 
+        
+    
+    def tearDown(self):
+
+        if not self.debuging:
+            shutil.rmtree(self.path)
+        self.assertFalse(self.debuging)
+
+    def load_result(self, run_name):
+        
+        import madgraph.iolibs.save_load_object as save_load_object
+        import madgraph.madevent.gen_crossxhtml as gen_crossxhtml
+        
+        result = save_load_object.load_from_file(pjoin(self.run_dir,'HTML/results.pkl'))
+        return result[run_name]
+ 
+    def check_parton_output(self, run_name='run_01', target_event=100, cross=0, error=9e99, delta_event=0, html=True):
+        """Check that parton output exists and reach the targert for event"""
+                
+        # check that the number of event is fine:
+        data = self.load_result(run_name)
+        if target_event > 0:
+            if delta_event == 0:
+                self.assertEqual(target_event, int(data[0]['nb_event']))
+            else:
+                self.assertLessEqual(abs(int(data[0]['nb_event'])-target_event), delta_event)
+        self.assertIn('lhe', data[0].parton)
+        
+        if cross:
+            import math
+            new_error = math.sqrt(error**2 + float(data[0]['error'])**2)
+            self.assertLess(
+                abs(cross - float(data[0]['cross']))/new_error,
+                3,
+                'cross is %s and not %s. NB_SIGMA %s' % (float(data[0]['cross']), cross, float(data[0]['cross'])/new_error)
+            )
+            self.assertLess(float(data[0]['error']), 3 * error)
+        if html:
+            check_html_page(self, pjoin(self.run_dir, 'crossx.html'))
+        if 'decayed' not in run_name:
+            check_html_page(self, pjoin(self.run_dir,'HTML', run_name, 'results.html'))
+
+
+
+
+# WARNING THIS FILE IS AUTOGENERATED -> edit test_simd_madevent.template
+    def test_simd_cpp_heft_ggh_double(self):
+        """e testing a HEFT process gg>aa in double precision"""
+
+        if logging.getLogger('madgraph').level <= 20:
+            stdout=None
+            stderr=None
+        else:
+            devnull =open(os.devnull,'w')
+            stdout=devnull
+            stderr=devnull
+            
+        try:
+            shutil.rmtree('/tmp/MGPROCESS/')
+        except Exception as error:
+            pass
+        
+        cmd = """#title testing a HEFT process gg>aa in double precision
+import model heft
+                 set automatic_html_opening False --no_save
+                 set notification_center False --no_save
+                 generate g g > h > a a
+                 output madevent_simd %s -f -nojpeg
+                 launch
+                 set nevents 100
+                 set floating_type d
+#check run_01 0.01859 0.0002853789088650386 100
+
+                 """ %self.run_dir
+
+        open(pjoin(self.path, 'mg5_cmd'),'w').write(cmd)
+        
+        subprocess.call([sys.executable, pjoin(MG5DIR, 'bin','mg5_aMC'), 
+                         pjoin(self.path, 'mg5_cmd')],
+                         #cwd=self.path,
+                        stdout=stdout, stderr=stderr)
+
+        self.check_parton_output(cross=0.01859, error=0.0002853789088650386, run_name='run_01', html=True)
+        event = '%s/Events/run_01/unweighted_events.lhe' % self.run_dir
+        if not os.path.exists(event):
+            misc.gunzip(event)
+        
+        lhefile = lhe_parser.EventFile(event)
+        nb_event = 0
+        for event in lhe_parser.EventFile(event):
+            event.check()
+            nb_event+=1
+
+        self.assertEqual(nb_event, 100)
+# WARNING THIS FILE IS AUTOGENERATED -> edit test_simd_madevent.template
+    def test_simd_cpp_pptt_mixed(self):
+        """e check ggtt within mixed mode"""
+
+        if logging.getLogger('madgraph').level <= 20:
+            stdout=None
+            stderr=None
+        else:
+            devnull =open(os.devnull,'w')
+            stdout=devnull
+            stderr=devnull
+            
+        try:
+            shutil.rmtree('/tmp/MGPROCESS/')
+        except Exception as error:
+            pass
+        
+        cmd = """#title check ggtt within mixed mode
+import model sm
+                 set automatic_html_opening False --no_save
+                 set notification_center False --no_save
+                 generate p p > t t~
+                 output madevent_simd %s -f -nojpeg
+                 launch
+                 set nevents 100
+                 set floating_type m
+#check run_01 505.5 2.749 100
+
+                 """ %self.run_dir
+
+        open(pjoin(self.path, 'mg5_cmd'),'w').write(cmd)
+        
+        subprocess.call([sys.executable, pjoin(MG5DIR, 'bin','mg5_aMC'), 
+                         pjoin(self.path, 'mg5_cmd')],
+                         #cwd=self.path,
+                        stdout=stdout, stderr=stderr)
+
+        self.check_parton_output(cross=505.5, error=2.749, run_name='run_01', html=True)
+        event = '%s/Events/run_01/unweighted_events.lhe' % self.run_dir
+        if not os.path.exists(event):
+            misc.gunzip(event)
+        
+        lhefile = lhe_parser.EventFile(event)
+        nb_event = 0
+        for event in lhe_parser.EventFile(event):
+            event.check()
+            nb_event+=1
+
+        self.assertEqual(nb_event, 100)
+# WARNING THIS FILE IS AUTOGENERATED -> edit test_simd_madevent.template
+    def test_simd_cpp_eemumua_float(self):
+        """e check eemumua in single precision"""
+
+        if logging.getLogger('madgraph').level <= 20:
+            stdout=None
+            stderr=None
+        else:
+            devnull =open(os.devnull,'w')
+            stdout=devnull
+            stderr=devnull
+            
+        try:
+            shutil.rmtree('/tmp/MGPROCESS/')
+        except Exception as error:
+            pass
+        
+        cmd = """#title check eemumua in single precision
+import model sm
+                 set automatic_html_opening False --no_save
+                 set notification_center False --no_save
+                 generate e+ e- > mu+ mu- a
+                 output madevent_simd %s -f -nojpeg
+                 launch
+                 set nevents 100
+                 set floating_type f
+#check run_01 0.0266 0.0002854 100
+
+                 """ %self.run_dir
+
+        open(pjoin(self.path, 'mg5_cmd'),'w').write(cmd)
+        
+        subprocess.call([sys.executable, pjoin(MG5DIR, 'bin','mg5_aMC'), 
+                         pjoin(self.path, 'mg5_cmd')],
+                         #cwd=self.path,
+                        stdout=stdout, stderr=stderr)
+
+        self.check_parton_output(cross=0.0266, error=0.0002854, run_name='run_01', html=True)
+        event = '%s/Events/run_01/unweighted_events.lhe' % self.run_dir
+        if not os.path.exists(event):
+            misc.gunzip(event)
+        
+        lhefile = lhe_parser.EventFile(event)
+        nb_event = 0
+        for event in lhe_parser.EventFile(event):
+            event.check()
+            nb_event+=1
+
+        self.assertEqual(nb_event, 100)
+# WARNING THIS FILE IS AUTOGENERATED -> edit test_simd_madevent.template
+    def test_simd_cpp_vector_size(self):
+        """e: check that multiple vector size returns the same value"""
+
+        if logging.getLogger('madgraph').level <= 20:
+            stdout=None
+            stderr=None
+        else:
+            devnull =open(os.devnull,'w')
+            stdout=devnull
+            stderr=devnull
+            
+        try:
+            shutil.rmtree('/tmp/MGPROCESS/')
+        except Exception as error:
+            pass
+        
+        cmd = """#title: check that multiple vector size returns the same value
+import model sm
+set automatic_html_opening False --no_save
+set notification_center False --no_save
+generate p p > t t~
+output madevent_simd %s -f -nojpeg
+launch  
+set nevents 100
+set floating_type m
+set vector_size 16
+launch
+set vector_size 32
+launch
+set vector_size 64
+#check run_01 505.5 2.749 100
+#check run_02 505.5 2.749 100 
+#check run_03 505.5 2.749 100
+
+                 """ %self.run_dir
+
+        open(pjoin(self.path, 'mg5_cmd'),'w').write(cmd)
+        
+        subprocess.call([sys.executable, pjoin(MG5DIR, 'bin','mg5_aMC'), 
+                         pjoin(self.path, 'mg5_cmd')],
+                         #cwd=self.path,
+                        stdout=stdout, stderr=stderr)
+
+        self.check_parton_output(cross=505.5, error=2.749, run_name='run_01', html=True)
+        event = '%s/Events/run_01/unweighted_events.lhe' % self.run_dir
+        if not os.path.exists(event):
+            misc.gunzip(event)
+        
+        lhefile = lhe_parser.EventFile(event)
+        nb_event = 0
+        for event in lhe_parser.EventFile(event):
+            event.check()
+            nb_event+=1
+
+        self.assertEqual(nb_event, 100)
+        self.check_parton_output(cross=505.5, error=2.749, run_name='run_02', html=False)
+        event = '%s/Events/run_02/unweighted_events.lhe' % self.run_dir
+        if not os.path.exists(event):
+            misc.gunzip(event)
+        
+        lhefile = lhe_parser.EventFile(event)
+        nb_event = 0
+        for event in lhe_parser.EventFile(event):
+            event.check()
+            nb_event+=1
+
+        self.assertEqual(nb_event, 100)
+        self.check_parton_output(cross=505.5, error=2.749, run_name='run_03', html=False)
+        event = '%s/Events/run_03/unweighted_events.lhe' % self.run_dir
+        if not os.path.exists(event):
+            misc.gunzip(event)
+        
+        lhefile = lhe_parser.EventFile(event)
+        nb_event = 0
+        for event in lhe_parser.EventFile(event):
+            event.check()
+            nb_event+=1
+
+        self.assertEqual(nb_event, 100)
\ No newline at end of file
diff --git a/epochX/cudacpp/CODEGEN/PLUGIN/CUDACPP_SA_OUTPUT/acceptance_tests/test_simd_madevent.template b/epochX/cudacpp/CODEGEN/PLUGIN/CUDACPP_SA_OUTPUT/acceptance_tests/test_simd_madevent.template
new file mode 100755
index 0000000000..3b9b8e2c7d
--- /dev/null
+++ b/epochX/cudacpp/CODEGEN/PLUGIN/CUDACPP_SA_OUTPUT/acceptance_tests/test_simd_madevent.template
@@ -0,0 +1,115 @@
+################################################################################
+#
+# Copyright (c) 2009 The MadGraph5_aMC@NLO Development team and Contributors
+#
+# This file is a part of the MadGraph5_aMC@NLO project, an application which 
+# automatically generates Feynman diagrams and matrix elements for arbitrary
+# high-energy processes in the Standard Model and beyond.
+#
+# It is subject to the MadGraph5_aMC@NLO license which should accompany this 
+# distribution.
+#
+# For more information, visit madgraph.phys.ucl.ac.be and amcatnlo.web.cern.ch
+#
+################################################################################
+from __future__ import division
+from __future__ import absolute_import
+import subprocess
+import unittest
+import os
+import re
+import shutil
+import sys
+import logging
+import time
+import tempfile
+import math
+import madgraph
+
+
+logger = logging.getLogger('test_cmd')
+
+import tests.unit_tests.iolibs.test_file_writers as test_file_writers
+
+import madgraph.interface.master_interface as MGCmd
+import madgraph.interface.madevent_interface as MECmd
+import madgraph.interface.launch_ext_program as launch_ext
+import madgraph.iolibs.files as files
+
+import madgraph.various.misc as misc
+import madgraph.various.lhe_parser as lhe_parser
+import madgraph.various.banner as banner_mod
+import madgraph.various.lhe_parser as lhe_parser
+import madgraph.various.banner as banner
+
+_file_path = os.path.split(os.path.dirname(os.path.realpath(__file__)))[0]
+_pickle_path =os.path.join(_file_path, 'input_files')
+
+from madgraph import MG4DIR, MG5DIR, MadGraph5Error, InvalidCmd
+
+from tests.acceptance_tests.test_cmd_madevent import check_html_page
+pjoin = os.path.join
+
+
+#===============================================================================
+# TestCmd
+#===============================================================================
+class TestCPPfromfile(unittest.TestCase): # inherit from upstream test_cmd_madevent
+    """test that we can launch everything from a single file"""
+
+
+    def setUp(self):
+        
+        self.debuging = unittest.debug
+        if self.debuging:
+            self.path = pjoin(MG5DIR, 'ACC_TEST')
+            if os.path.exists(self.path):
+                 shutil.rmtree(self.path)
+            os.mkdir(self.path) 
+        else:
+            self.path = tempfile.mkdtemp(prefix='acc_test_mg5')
+        self.run_dir = pjoin(self.path, 'MGPROC') 
+        
+    
+    def tearDown(self):
+
+        if not self.debuging:
+            shutil.rmtree(self.path)
+        self.assertFalse(self.debuging)
+
+    def load_result(self, run_name):
+        
+        import madgraph.iolibs.save_load_object as save_load_object
+        import madgraph.madevent.gen_crossxhtml as gen_crossxhtml
+        
+        result = save_load_object.load_from_file(pjoin(self.run_dir,'HTML/results.pkl'))
+        return result[run_name]
+ 
+    def check_parton_output(self, run_name='run_01', target_event=100, cross=0, error=9e99, delta_event=0, html=True):
+        """Check that parton output exists and reach the targert for event"""
+                
+        # check that the number of event is fine:
+        data = self.load_result(run_name)
+        if target_event > 0:
+            if delta_event == 0:
+                self.assertEqual(target_event, int(data[0]['nb_event']))
+            else:
+                self.assertLessEqual(abs(int(data[0]['nb_event'])-target_event), delta_event)
+        self.assertIn('lhe', data[0].parton)
+        
+        if cross:
+            import math
+            new_error = math.sqrt(error**2 + float(data[0]['error'])**2)
+            self.assertLess(
+                abs(cross - float(data[0]['cross']))/new_error,
+                3,
+                'cross is %s and not %s. NB_SIGMA %s' % (float(data[0]['cross']), cross, float(data[0]['cross'])/new_error)
+            )
+            self.assertLess(float(data[0]['error']), 3 * error)
+        if html:
+            check_html_page(self, pjoin(self.run_dir, 'crossx.html'))
+        if 'decayed' not in run_name:
+            check_html_page(self, pjoin(self.run_dir,'HTML', run_name, 'results.html'))
+
+
+