config.xml

<?xml version="1.0"?>
<adios-config>

    <io name="Output">
        <engine name="BPFileWriter">verbose=4;profile_units=mus</engine>
        <transport name= "File">
            profile_units=mus; 
            abort_on_error;
            have_metadata_file 
               =
                 no;
        </transport>

        <!-- Create a named transform and add variables to it here. 
             name is optional, required only if it is used outside the definition
             options is optional to pass parameters to the transformation
        -->
        <transform name="LossyCompression" transform="zfp" options="accuracy=0.001">
            <var name="myMatrix"/>
            <var name="ThisVarDoesNotExists"/>
        </transform>

        <!-- Unnamed transformation -->
        <transform transform="bzip2">
            <var name="myMatrix2"/>
        </transform>

        <!-- A variable can have its own private transform definition. 
             Also its own ordered chain of transformations.
             Also can refer to a transform defined previously
        -->
        <var name="myDoubles"> 
            <transform transform="identity">verbose=DEBUG</transform>
            <transform name="LossyCompression"/>
        </var>

        <buffer max-size-MB="20"/>
    </io>

</adios-config>