Esempio n. 1
0
def load_mechanisms(path):
    """
    Search for and load NMODL mechanisms from the path given.

    This a stricter version of NEURON's own load_mechanisms function, which will
    raise an IOError if no mechanisms are found at the given path. This function
    will not load a mechanism path twice.

    The path should specify the directory in which nrnivmodl was run, and in
    which the directory 'i686' (or 'x86_64' or 'powerpc' depending on your
    platform) was created.
    """
    import platform

    global nrn_dll_loaded
    if path in nrn_dll_loaded:
        logger.warning("Mechanisms already loaded from path: %s" % path)
        return
    # in case NEURON is assuming a different architecture to Python,
    # we try multiple possibilities
    arch_list = [platform.machine(), 'i686', 'x86_64', 'powerpc', 'umac']
    for arch in arch_list:
        lib_path = os.path.join(path, arch, '.libs', 'libnrnmech.so')
        if os.path.exists(lib_path):
            h.nrn_load_dll(lib_path)
            nrn_dll_loaded.append(path)
            return
    raise IOError(
        "NEURON mechanisms not found in %s. You may need to run 'nrnivmodl' in this directory."
        % path)
Esempio n. 2
0
def load_mechanisms(path):
    """
    Search for and load NMODL mechanisms from the path given.

    This a stricter version of NEURON's own load_mechanisms function, which will
    raise an IOError if no mechanisms are found at the given path. This function
    will not load a mechanism path twice.

    The path should specify the directory in which nrnivmodl was run, and in
    which the directory 'i686' (or 'x86_64' or 'powerpc' depending on your
    platform) was created.
    """
    import platform

    global nrn_dll_loaded
    if path in nrn_dll_loaded:
        logger.warning("Mechanisms already loaded from path: %s" % path)
        return
    # in case NEURON is assuming a different architecture to Python,
    # we try multiple possibilities
    arch_list = [platform.machine(), 'i686', 'x86_64', 'powerpc', 'umac']
    for arch in arch_list:
        lib_path = os.path.join(path, arch, '.libs', 'libnrnmech.so')
        if os.path.exists(lib_path):
            h.nrn_load_dll(lib_path)
            nrn_dll_loaded.append(path)
            return
    raise IOError("NEURON mechanisms not found in %s. You may need to run 'nrnivmodl' in this directory." % path)