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## page was renamed from EMAN2/COMPILE_EMAN2_ANACONDA/2.9
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{{{#!html
<h1 style="margin-bottom:5px;"> Building EMAN2/SPARX/SPHIRE from Source </h1>

<p style="font-size:110%; text-align:center; margin-top:5px; margin-left:20px; margin-right:20px;">
<i>
Standard instructions for establishing a build and runtime environment for EMAN/SPARX/SPHIRE on Linux and macOS
</i>
</p>
}}}


 * While the instructions look long, in reality it should only take 10-15 minutes to complete the entire process (with a decent network connection).

 * We use [[https://docs.conda.io/en/latest/|Conda]] for a working environment and most of the dependencies. [[https://www.anaconda.com/distribution/|Anaconda distribution]] has become ubiquitous for Python and R-based scientific computing and education over the last decade. While it may be possible to build the system without using Conda, we do not recommend doing this, and cannot provide support for a non-conda approach. If you follow the instructions below, you should have a painless source build very quickly.

 * We make use of the [[https://docs.conda.io/projects/conda/en/latest/user-guide/tasks/manage-environments.html|environment]] system in [[https://docs.conda.io/en/latest/|conda]], the package manager, to isolate EMAN2 dependencies from other conda packages you may have installed. If you need to install other packages you wish to use in concert with EMAN2, you will need to install them within the EMAN2 environment. Be warned that sometimes installing another package may trigger a version change in one of EMAN2's dependencies, which may or may not be a problem, depending on which dependency it is. We strongly suggest getting the base EMAN2 installed and working first, before trying to install any additional packages within the same conda environment.

 * Note that even with a source build it may be difficult to get this working on systems with very old operating system installs. We normally try to support OS versions as much as 5-7 years old. Please report any problems.

 * '''GPU Support (Linux Only!):''' For features which support the GPU, please complete the standard source install instructions below, then follow the [[EMAN2/Install/BinaryInstallAnaconda/2.31#Using_the_GPU|GPU instructions]] from the binary installation page.

Line 4: Line 30:
{{{#!wiki note
The older instructions are here, [[EMAN2/COMPILE_EMAN2_ANACONDA-PRE-CONDA-ENVIRONMENTS|pre-conda-environments instructons]].
}}}

= Building EMAN2/SPARX/SPHIRE from Source =

These are the standard instructions for establishing a build and runtime environment for EMAN2/SPARX/SPHIRE on Linux and Mac. Building on Windows is so complicated that we do not provide instructions at this point in time. This build uses [[https://www.anaconda.com/distribution/|Anaconda/Miniconda]] for a working environment and most of the dependencies. Anaconda has become ubiquitous for Python and R-based scientific computing and education over the last decade. While it may be possible to build the system without using Anaconda, we do not recommend doing this, and do not provide support for a non-Anaconda approach. If you follow the instructions below, you should have a painless source build very quickly.

The EMAN2 source lives on [[https://github.com/cryoem/eman2|GitHub]], downloading the source is part of the instructions below. '''Do not download it yet!'''

Note that even with a source build it may be difficult to get this working on systems with very old operating system installs. We normally try to support OS versions as much as 5-7 years old. Please report any problems.

=== GPU Support ===

For features which support the GPU, please complete the standard source install instructions below, then follow the [[EMAN2/Install/BinaryInstallAnaconda/2.31#Using_the_GPU|GPU instructions]] from the binary installation page.

== Installing EMAN2/SPHIRE/SPARX from source ==

Anaconda comes in two flavors ''Anaconda'' which is a full featured system with many libraries and capabilities built in, and ''Miniconda'' which is a stripped down version of the system. Both systems are the same, it is just a question of which packages come preinstalled. These instructions are based on the smaller Miniconda install. You may also have success with Anaconda, but a better approach may be to install Miniconda, then add in any extra packages you actually need.

We make use of the [[https://docs.conda.io/projects/conda/en/latest/user-guide/tasks/manage-environments.html|environment]] system in Anaconda to isolate EMAN2 dependencies from other Anaconda packages you may have installed. If you need to install other packages you wish to use in concert with EMAN2, you will need to install them within the EMAN2 environment. Be warned that sometimes installing another package may trigger a version change in one of EMAN2's dependencies, which may or may not be a problem, depending on which dependency it is. We strongly suggest getting the base EMAN2 installed and working first, before trying to install any additional packages within the same Anaconda environment.

=== Initial Setup and Build (one time) ===

 1. If you do not have Anaconda/Miniconda (or another copy of EMAN2/SPARX/SPHIRE) already installed in your account, skip to the next step. If you DO have Anaconda or Miniconda installed in your account, these instructions will be installing a new complete copy of Miniconda, so you must insure that any existing install you have is not active in your shell (not in PATH, no LD_LIBRARY_PATH or PYTHONPATH set). While it may also be possible to set up an environment for EMAN2 in your existing install, you would need to adapt these instructions to your own situation yourself to do that.
== Initial Setup (one time) ==

 1. '''Remove/disable other Anaconda/Miniconda/EMAN installations.''' If you do not have Anaconda/Miniconda (or another copy of EMAN2/SPARX/SPHIRE) already installed in your account, skip to step [[#install_miniconda|2]]. If you DO have Anaconda or Miniconda installed in your account, you must ensure that any existing install you have is not active in your shell (not in PATH, no LD_LIBRARY_PATH, PYTHONPATH or PYTHONHOME set). While it may also be possible to set up an environment for EMAN2 in your existing Anaconda install, you will need to know what you're doing, and adapt these instructions to your situation.
Line 39: Line 43:
 1. Download and install this specific version of '''Miniconda''': [[https://repo.continuum.io/miniconda/Miniconda3-4.6.14-Linux-x86_64.sh|Linux]] or [[https://repo.continuum.io/miniconda/Miniconda3-4.6.14-MacOSX-x86_64.sh|MacOSX]]  <<Anchor(install_miniconda)>>
1. '''Download and install''' '''Miniconda''': [[https://repo.anaconda.com/miniconda/Miniconda3-latest-Linux-x86_64.sh|Linux]] or [[https://repo.anaconda.com/miniconda/Miniconda3-latest-MacOSX-x86_64.sh|macOS]]
Line 49: Line 54:
 1. Initialize conda for shell interaction. These instructions will depend on what shell you use. The default on most systems is ''bash''. If you use a different shell ( ''tsch'', ''zsh'', ... ), you will need to take this into account:  1. '''Initialize conda for shell interaction.''' These instructions will depend on what shell you use. The default on most systems is ''bash''. If you use a different shell ( ''tsch'', ''zsh'', ... ), you will need to take this into account:
Line 60: Line 65:

# we suggest the following, meaning you will need to use ''conda activate'' after logging in before using EMAN2
}}}

 As it says after you run this command, you will need to close and reopen your shell/terminal for it to take effect. This command modified your shell initialization so the ''conda activate'' command can be used properly. For more information on conda-init and activation, see [[https://docs.conda.io/projects/conda/en/latest/user-guide/tasks/manage-environments.html#activating-an-environment|Environment Activation]].

 {{{#!wiki caution
'''macOS''' Users (bash only)

On macOS, this modifies ''~/.bash_profile''. If you have a ''~/.profile'' startup file, creation of ''~/.bash_profile'' will prevent ''~/.profile'' from being read. A simple solution is to ''source .profile'' within ''.bash_profile''.

For differences between login- and non-login shells and order of reading the startup files on macOS, see, [[https://www.anintegratedworld.com/basics-of-osx-bashrc-v-profile-v-bash_profile/]].
}}}

 1. '''Configure and update conda.'''
 {{{#!highlight bash
# We suggest the following, meaning you will need to use ''conda activate'' after logging in before using EMAN2
Line 63: Line 81:
}}}

 As it says after you run this command, you will need to close and reopen your shell/terminal for it to take effect. This command modified your shell initialization so the ''conda activate'' command can be used properly. For more information on conda-init and activation, see [[https://docs.conda.io/projects/conda/en/latest/user-guide/tasks/manage-environments.html#activating-an-environment|Environment Activation]].

 {{{#!wiki caution
'''MacOS''' Users (bash only)

On MacOS, this modifies ''~/.bash_profile''. If you have a ''~/.profile'' startup file, creation of ''~/.bash_profile'' will prevent ''~/.profile'' from being read. A simple solution is to ''source .profile'' within ''.bash_profile''.

For differences between login- and non-login shells and order of reading the startup files on Mac OSX, see, [[https://www.anintegratedworld.com/basics-of-osx-bashrc-v-profile-v-bash_profile/]].
}}}


 1. Configure conda.
 {{{#!highlight bash
# Automatic Anaconda/Miniconda updates may cause things to break, so we suggest making all package upgrades explicitly
# The current version verified to work with EMAN is '''conda 4.6.14'''

# Automatic conda updates may cause things to break, so we suggest making all package upgrades explicitly
# The current version verified to work with EMAN is '''conda 4.9.1'''
Line 81: Line 85:
}}}

 1. Create a new environment with EMAN2 dependencies. ''eman2'' below is the name of the environment. You may make this whatever you like, as long as you remember to use the same name when doing ''conda activate''. Note that this name will appear as part of your prompt when activated, so you may want to keep it short.
 {{{#!highlight bash
conda create -n eman2 eman-deps=15.1 cmake=3.14 -c cryoem -c defaults -c conda-forge
}}}
 If you wish to see the [[https://github.com/cryoem/eman-deps-feedstock/blob/v15.1/recipe/meta.yaml#L9-L53|list of conda dependencies]] that '''eman-deps''' is built from, look [[https://github.com/cryoem/eman-deps-feedstock/blob/v15.1/recipe/meta.yaml#L9-L53|here]].

# Flexible channel priority works better for eman-deps
conda config --set channel_priority flexible

# Update base environment to get the latest conda
conda update --all -n base
}}}

 1. '''Create a new environment''' with EMAN2 dependencies. ''eman2'' below is the name of the environment. You may make this whatever you like, as long as you remember to use the same name when doing ''conda activate''. Note that this name will appear as part of your prompt when activated, so you may want to keep it short.


{{{#!wiki caution
'''As of 9/20/2021''' eman-deps version used for binaries on master branch is 29.0. This version has most dependencies pinned to current conda-forge pins. Notable upgrades include boost from 1.69 to 1.74 and OpenMPI from 3 to 4.

Note that the channel sources in the command have changed. '''conda-forge''' has higher priority than '''defaults''' now.
}}}

 {{{#!highlight bash
conda create -n eman2 eman-deps=29.0 -c cryoem -c conda-forge -c defaults
}}}
 
{{{{#!wiki note

 Command used before '''9/20/2021''', if needed:

{{{#!highlight bash
 conda create -n eman2 eman-deps=26 -c cryoem -c defaults -c conda-forge
}}}
}}}}

 '''List of dependencies: '''If you wish to see the list of conda dependencies that '''eman-deps''' is built from, look [[https://github.com/cryoem/eman-deps-feedstock/blob/master/recipe/meta.yaml|here]]. Some of the dependency versions are listed in the appropriate file under [[https://github.com/cryoem/eman-deps-feedstock/tree/master/.ci_support|.ci_support]].

 {{{{#!wiki caution
'''macOS Big Sur Users'''

The new Big Sur macOS release (fall 2020) broke some things in Python, which are only now (Dec 2020) getting fixed. These fixes have not yet made their way into Anaconda. If you experience an error similar to "Unable to load OpenGL library", install a patched pyopengl package from cryoem channel (as of 1/13/2021).

{{{#!shell
conda install pyopengl -c cryoem
}}}

'''OR'''

This quick fix seems to provide a temporary solution until Anaconda gets the necessary updates:

You need to go into your miniconda3 or anaconda3 folder and find this file (the path may be slightly different on your install, but you should be able to find it):

''~/anaconda3/envs/eman2/lib/python3.7/site-packages/OpenGL/platform/ctypesloader.py''

Around line 80 you should find a line like:

'' fullName = util.find_library( name )''

change this line to:

'' fullName = '/System/Library/Frameworks/' + name + '.framework/' + name ''

(important to use 8 spaces before fullName, not a <tab>)

}}}}

 1. Ensure you have '''OpenGL''':
  EMAN2 uses OpenGL (via !PyQt) for all of its graphics. OpenGL installation depends on OS variant and, for example, whether you are using proprietary NVidia drivers under Linux. You will need to have OpenGL set up on your machine as a whole before continuing. On Mac, you should already have this with XCode. On Linux with an NVidia driver you will likely also need to install the Mesa header files. If you aren't sure how to set up OpenGL, Google can probably help.
Line 100: Line 160:
== Build and Install: Daily development, Update code, etc. ==

When you start a new shell, these are the steps you will need to take before running EMAN programs or compiling the system:
Line 105: Line 169:
 1. '''Checkout source code''' and pull from the remote.
 {{{#!highlight bash
cd <source-directory> # <path-where-you-want-eman2-source>/eman2
git checkout <branch>
git pull --rebase
}}}

 1. '''Build EMAN'''
 1. '''Update and Checkout source code'''. Periodically you should update your source using standard git techniques.
 {{{#!highlight bash
cd <source-directory> # <path-where-you-want-eman2-source>/eman2
git fetch --all --prune # optional cleanup of local files
git checkout master # to make sure you are building from the current master build rather than a branch someone is working on
git pull # This is what actually updates your local copy of the code
}}}

 1. '''CMake'''
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cmake <source-directory> # - eg $HOME/src/eman2. On linux, also add -DENABLE_OPTIMIZE_MACHINE=ON
}}}
  * If you use '''cmake-gui''', since conda is not in PATH anymore, cmake will fail to find the environment directory. In that case set CONDA_PREFIX to your conda environment directory manually.
  * Make sure to delete any cmake variables that cmake already found, variables like *_LIBRARY or similar, *_INCLUDE_PATH or similar, CONDA_EXECUTABLE, CMAKE_INSTALL_PREFIX and any variables that are expected to contain conda environment related values.
  * Configure and generate in cmake.

 {{{#!highlight bash
# on Mac:
cmake <source-directory> # - eg $HOME/src/eman2, optionally add -DCMAKE_VERBOSE_MAKEFILE

# on Linux:
cmake <source-directory> -DENABLE_OPTIMIZE_MACHINE=ON # - eg $HOME/src/eman2, optionally add -DCMAKE_VERBOSE_MAKEFILE
}}}
  * '''cmake-gui'''
   * If you use '''cmake-gui''', since conda is not in PATH anymore, cmake will fail to find the environment directory. In that case set CONDA_PREFIX to your conda environment directory manually.
   * Make sure to delete any cmake variables that cmake already found, variables like *_LIBRARY or similar, *_INCLUDE_PATH or similar, CONDA_EXECUTABLE, CMAKE_INSTALL_PREFIX and any variables that are expected to contain conda environment related values.
   * Configure and generate.
  * '''ccmake'''
   * If you use '''ccmake''', you may get an error related to OpenGL. If this happens try quitting ccmake and running it again.

 1. '''Make'''
 {{{#!highlight bash
make -j 8
make install
}}}

 Note that the '''make -j 8''' above will compile using 8 threads. On some machines omitting the 8 will compile faster and cause no problems, and if you have more than 8 threads on your machine, you can increase the number.

== Test install ==
 * e2version.py
 * e2speedtest.py
 * e2display.py (not for clusters without GUI environments configured)
 * note: "make test" is not recommended for individual installs, this tool is primarily aimed at developers making changes in the core of the system. It is not uncommon for one or more tests to fail, and there is no need to report such failures. In most cases this is a problem with the test, not a problem with the system.

 1. '''Other Environments'''. To switch to another conda environment (stop working with EMAN2), first deactivate your current environment.
 {{{#!highlight bash
conda deactivate
}}}

=== Troubleshooting ===
Solutions to potential known problems will be listed here. If these don't help, please report your problem (http://groups.google.com/group/eman2):

 * If using a newer C compiler on Linux, you may encounter an error like:
{{{
/home/steve/miniconda3/envs/eman2/lib/libstdc++.so.6: version `GLIBCXX_3.4.29' not found
}}}
Simply removing the offending libstdc++.so file will normally resolve this issue.


<<Anchor(debug_and_report)>>
== Reporting Problems ==

Please, provide the output of the following commands when reporting a problem. Record the session via '''script''' command. This, also, records the commands.

 1. {{{#!highlight bash
script filename.txt

conda activate eman2

conda info -a
conda list
conda list --explicit

cd <source-dir>

git status
git log -1

cd <build-dir>

rm CMakeCache.txt
cmake <source-dir>
cmake . -LA

make clean
Line 124: Line 250:
}}}

 1. You may also wish to run
 {{{#!highlight bash
make test # if everything passes you are fine, if there are failures, you are welcome to ask
make test-verbose # verbose test output to help to identify specific failures
}}}


== EMAN Daily Development ==
When you start a new shell, these are the steps you will need to take before running EMAN2 programs or compiling the system:

 1. '''Activate''' your environment. If you used a different name above, use it here too.
 {{{#!highlight bash
conda activate eman2
}}}

 1. Periodically you should update your source using standard git techniques. If you are not modifying EMAN, just compiling from source, you just need to periodically:
 {{{#!highlight bash
cd <source-directory> # <path-where-you-want-eman2-source>/eman2
git pull
}}}

 1. '''Build EMAN'''
 {{{#!highlight bash
cd <build-directory>
make -j
# if there are build problems, before reporting them, try rerunning cmake (above) first
make install
}}}

 1. To switch to another conda environment (stop working with EMAN2), first deactivate your current environment.
 {{{#!highlight bash
make test-verbose
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}}}
exit # or Ctrl+D
}}}

 1. Send '''filename.txt'''.
Line 163: Line 263:
The approach above will install EMAN with a precompiled version of OpenMPI, which may or may not work with the batch queuing system on your cluster. If it does not work, the symptom will be that MPI parallel jobs will use only a single node, no matter how many you have allocated in your job. If this happens please see the linux cluster installations on the [[EMAN2/Install/BinaryInstallAnaconda/2.31#Linux_Clusters|binary install page]]. Those instructions should also work with either of the source-based installations below. The approach above will install EMAN with a precompiled version of OpenMPI, which may or may not work with the batch queuing system on your cluster. If it does not work, the symptom will be that MPI parallel jobs will use only a single node, no matter how many you have allocated in your job. Currently, we do not have alternative OpenMPI installation instructions.

Building EMAN2/SPARX/SPHIRE from Source

Standard instructions for establishing a build and runtime environment for EMAN/SPARX/SPHIRE on Linux and macOS

  • While the instructions look long, in reality it should only take 10-15 minutes to complete the entire process (with a decent network connection).
  • We use Conda for a working environment and most of the dependencies. Anaconda distribution has become ubiquitous for Python and R-based scientific computing and education over the last decade. While it may be possible to build the system without using Conda, we do not recommend doing this, and cannot provide support for a non-conda approach. If you follow the instructions below, you should have a painless source build very quickly.

  • We make use of the environment system in conda, the package manager, to isolate EMAN2 dependencies from other conda packages you may have installed. If you need to install other packages you wish to use in concert with EMAN2, you will need to install them within the EMAN2 environment. Be warned that sometimes installing another package may trigger a version change in one of EMAN2's dependencies, which may or may not be a problem, depending on which dependency it is. We strongly suggest getting the base EMAN2 installed and working first, before trying to install any additional packages within the same conda environment.

  • Note that even with a source build it may be difficult to get this working on systems with very old operating system installs. We normally try to support OS versions as much as 5-7 years old. Please report any problems.
  • GPU Support (Linux Only!): For features which support the GPU, please complete the standard source install instructions below, then follow the GPU instructions from the binary installation page.

Initial Setup (one time)

  1. Remove/disable other Anaconda/Miniconda/EMAN installations. If you do not have Anaconda/Miniconda (or another copy of EMAN2/SPARX/SPHIRE) already installed in your account, skip to step 2. If you DO have Anaconda or Miniconda installed in your account, you must ensure that any existing install you have is not active in your shell (not in PATH, no LD_LIBRARY_PATH, PYTHONPATH or PYTHONHOME set). While it may also be possible to set up an environment for EMAN2 in your existing Anaconda install, you will need to know what you're doing, and adapt these instructions to your situation.

       1 echo $PATH
       2 # make sure no Anaconda/Miniconda/EMAN2 entries
       3 echo $LD_LIBRARY_PATH
       4 echo $PYTHONPATH
       5 # ideally, both return nothing. If it set to something it is possible that it may interfere with Anaconda
       6 # strongly suggest at least during the install, ''unset'' both of these. After installation you can test
       7 # to see if they cause any issues
       8 
    

  2. Download and install Miniconda: Linux or macOS

       1 bash <Miniconda-installer>
       2 
       3 # There are a variety of options you can use, but the default command above is sufficient in most cases
       4 bash <Miniconda-installer> --help
    

    and follow the prompts. When you see Do you wish the installer to initialize Miniconda3 by running conda init?, say no, then move on to the next step.

  3. Initialize conda for shell interaction. These instructions will depend on what shell you use. The default on most systems is bash. If you use a different shell ( tsch, zsh, ... ), you will need to take this into account:

       1 # for bash-like shells, such as bash and zsh
       2 source <miniconda-path>/etc/profile.d/conda.sh
       3 
       4 # for csh-like shells, such as csh and tcsh:
       5 source <miniconda-path>/etc/profile.d/conda.csh
       6 
       7 # <shell-name> is bash, fish, powershell, tcsh, xonsh or zsh
       8 conda init <shell-name>
    

    As it says after you run this command, you will need to close and reopen your shell/terminal for it to take effect. This command modified your shell initialization so the conda activate command can be used properly. For more information on conda-init and activation, see Environment Activation.

    macOS Users (bash only)

    On macOS, this modifies ~/.bash_profile. If you have a ~/.profile startup file, creation of ~/.bash_profile will prevent ~/.profile from being read. A simple solution is to source .profile within .bash_profile.

    For differences between login- and non-login shells and order of reading the startup files on macOS, see, https://www.anintegratedworld.com/basics-of-osx-bashrc-v-profile-v-bash_profile/.

  4. Configure and update conda.

       1 # We suggest the following, meaning you will need to use ''conda activate'' after logging in before using EMAN2
       2 conda config --set auto_activate_base False
       3 
       4 # Automatic conda updates may cause things to break, so we suggest making all package upgrades explicitly
       5 # The current version verified to work with EMAN is '''conda 4.9.1'''
       6 conda config --set auto_update_conda False
       7 
       8 # Flexible channel priority works better for eman-deps
       9 conda config --set channel_priority flexible
      10 
      11 # Update base environment to get the latest conda
      12 conda update --all -n base
    
  5. Create a new environment with EMAN2 dependencies. eman2 below is the name of the environment. You may make this whatever you like, as long as you remember to use the same name when doing conda activate. Note that this name will appear as part of your prompt when activated, so you may want to keep it short.

As of 9/20/2021 eman-deps version used for binaries on master branch is 29.0. This version has most dependencies pinned to current conda-forge pins. Notable upgrades include boost from 1.69 to 1.74 and OpenMPI from 3 to 4.

Note that the channel sources in the command have changed. conda-forge has higher priority than defaults now.

  •    1 conda create -n eman2 eman-deps=29.0 -c cryoem -c conda-forge -c defaults
    

  • Command used before 9/20/2021, if needed:

   1  conda create -n eman2 eman-deps=26 -c cryoem -c defaults -c conda-forge
  • List of dependencies: If you wish to see the list of conda dependencies that eman-deps is built from, look here. Some of the dependency versions are listed in the appropriate file under .ci_support.

    macOS Big Sur Users

    The new Big Sur macOS release (fall 2020) broke some things in Python, which are only now (Dec 2020) getting fixed. These fixes have not yet made their way into Anaconda. If you experience an error similar to "Unable to load OpenGL library", install a patched pyopengl package from cryoem channel (as of 1/13/2021).

    conda install pyopengl -c cryoem

    OR

    This quick fix seems to provide a temporary solution until Anaconda gets the necessary updates:

    You need to go into your miniconda3 or anaconda3 folder and find this file (the path may be slightly different on your install, but you should be able to find it):

    ~/anaconda3/envs/eman2/lib/python3.7/site-packages/OpenGL/platform/ctypesloader.py

    Around line 80 you should find a line like:

    fullName = util.find_library( name )

    change this line to:

    fullName = '/System/Library/Frameworks/' + name + '.framework/' + name

    (important to use 8 spaces before fullName, not a <tab>)

  • Ensure you have OpenGL:

    • EMAN2 uses OpenGL (via PyQt) for all of its graphics. OpenGL installation depends on OS variant and, for example, whether you are using proprietary NVidia drivers under Linux. You will need to have OpenGL set up on your machine as a whole before continuing. On Mac, you should already have this with XCode. On Linux with an NVidia driver you will likely also need to install the Mesa header files. If you aren't sure how to set up OpenGL, Google can probably help.

  • Get EMAN code from GitHub:cryoem/eman2.

       1 cd <path-where-you-want-eman2-source>   # eg - $HOME/src
       2 git clone https://github.com/cryoem/eman2.git # this will create an eman2 folder containing the current source code from the master branch
       3 
    
  • Create a build directory (out-of-source builds are recommended).

       1 mkdir <build-directory> # eg- $HOME/src/eman2-build
       2 
    

Build and Install: Daily development, Update code, etc.

When you start a new shell, these are the steps you will need to take before running EMAN programs or compiling the system:

  1. Activate your environment. If you used a different name above, use it here too.

       1 conda activate eman2
    
  2. Update and Checkout source code. Periodically you should update your source using standard git techniques.

       1 cd <source-directory>    # <path-where-you-want-eman2-source>/eman2
       2 git fetch --all --prune  # optional cleanup of local files
       3 git checkout master      # to make sure you are building from the current master build rather than a branch someone is working on
       4 git pull                 # This is what actually updates your local copy of the code
       5 
    
  3. CMake

       1 cd <build-directory>
       2 # on Mac:
       3 cmake <source-directory>   # - eg $HOME/src/eman2, optionally add -DCMAKE_VERBOSE_MAKEFILE
       4 
       5 # on Linux:
       6 cmake <source-directory> -DENABLE_OPTIMIZE_MACHINE=ON  # - eg $HOME/src/eman2, optionally add -DCMAKE_VERBOSE_MAKEFILE
       7 
    
    • cmake-gui

      • If you use cmake-gui, since conda is not in PATH anymore, cmake will fail to find the environment directory. In that case set CONDA_PREFIX to your conda environment directory manually.

      • Make sure to delete any cmake variables that cmake already found, variables like *_LIBRARY or similar, *_INCLUDE_PATH or similar, CONDA_EXECUTABLE, CMAKE_INSTALL_PREFIX and any variables that are expected to contain conda environment related values.
      • Configure and generate.
    • ccmake

      • If you use ccmake, you may get an error related to OpenGL. If this happens try quitting ccmake and running it again.

  4. Make

       1 make -j 8
       2 make install
    

    Note that the make -j 8 above will compile using 8 threads. On some machines omitting the 8 will compile faster and cause no problems, and if you have more than 8 threads on your machine, you can increase the number.

Test install

  • e2version.py
  • e2speedtest.py
  • e2display.py (not for clusters without GUI environments configured)
  • note: "make test" is not recommended for individual installs, this tool is primarily aimed at developers making changes in the core of the system. It is not uncommon for one or more tests to fail, and there is no need to report such failures. In most cases this is a problem with the test, not a problem with the system.
  • Other Environments. To switch to another conda environment (stop working with EMAN2), first deactivate your current environment.

       1 conda deactivate
    

Troubleshooting

Solutions to potential known problems will be listed here. If these don't help, please report your problem (http://groups.google.com/group/eman2):

  • If using a newer C compiler on Linux, you may encounter an error like:

/home/steve/miniconda3/envs/eman2/lib/libstdc++.so.6: version `GLIBCXX_3.4.29' not found

Simply removing the offending libstdc++.so file will normally resolve this issue.

Reporting Problems

Please, provide the output of the following commands when reporting a problem. Record the session via script command. This, also, records the commands.

  1.    1 script filename.txt
       2 
       3 conda activate eman2
       4 
       5 conda info -a
       6 conda list
       7 conda list --explicit
       8 
       9 cd <source-dir>
      10 
      11 git status
      12 git log -1
      13 
      14 cd <build-dir>
      15 
      16 rm CMakeCache.txt
      17 cmake <source-dir>
      18 cmake . -LA
      19 
      20 make clean
      21 make -j
      22 make install
      23 make test-verbose
      24 
      25 conda deactivate
      26 
      27 exit # or Ctrl+D
      28 
    
  2. Send filename.txt.

Linux Clusters

The approach above will install EMAN with a precompiled version of OpenMPI, which may or may not work with the batch queuing system on your cluster. If it does not work, the symptom will be that MPI parallel jobs will use only a single node, no matter how many you have allocated in your job. Currently, we do not have alternative OpenMPI installation instructions.

EMAN2/Install/SourceInstall (last edited 2024-09-13 17:55:35 by TunayDurmaz)