# ReadNek5000
read .nek5000 files

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<text x="0.2em" y="2.6500000000000004em" class="moduleName" >ReadNek5000</text><rect x="0.2em" y="2.8em" width="1.0em" height="1.0em" rx="0.0em" ry="0.0em" style="fill:#c8c81eff;" >
<title>grid_out</title></rect>
<rect x="0.7em" y="3.8em" width="0.03333333333333333em" height="5.0em" rx="0.0em" ry="0.0em" style="fill:#000000;" />
<rect x="0.7em" y="8.8em" width="1.0em" height="0.03333333333333333em" rx="0.0em" ry="0.0em" style="fill:#000000;" />
<text x="1.9em" y="8.9em" class="text" >grid<tspan> (grid_out)</tspan></text>
<rect x="1.4em" y="2.8em" width="1.0em" height="1.0em" rx="0.0em" ry="0.0em" style="fill:#c8c81eff;" >
<title>velosity_out</title></rect>
<rect x="1.9em" y="3.8em" width="0.03333333333333333em" height="4.0em" rx="0.0em" ry="0.0em" style="fill:#000000;" />
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<text x="3.0999999999999996em" y="7.8999999999999995em" class="text" >velocity<tspan> (velosity_out)</tspan></text>
<rect x="2.5999999999999996em" y="2.8em" width="1.0em" height="1.0em" rx="0.0em" ry="0.0em" style="fill:#c8c81eff;" >
<title>pressure_out</title></rect>
<rect x="3.0999999999999996em" y="3.8em" width="0.03333333333333333em" height="3.0em" rx="0.0em" ry="0.0em" style="fill:#000000;" />
<rect x="3.0999999999999996em" y="6.8em" width="1.0em" height="0.03333333333333333em" rx="0.0em" ry="0.0em" style="fill:#000000;" />
<text x="4.3em" y="6.8999999999999995em" class="text" >pressure data<tspan> (pressure_out)</tspan></text>
<rect x="3.8em" y="2.8em" width="1.0em" height="1.0em" rx="0.0em" ry="0.0em" style="fill:#c8c81eff;" >
<title>temperature_out</title></rect>
<rect x="4.3em" y="3.8em" width="0.03333333333333333em" height="2.0em" rx="0.0em" ry="0.0em" style="fill:#000000;" />
<rect x="4.3em" y="5.8em" width="1.0em" height="0.03333333333333333em" rx="0.0em" ry="0.0em" style="fill:#000000;" />
<text x="5.5em" y="5.8999999999999995em" class="text" >temperature data<tspan> (temperature_out)</tspan></text>
<rect x="5.0em" y="2.8em" width="1.0em" height="1.0em" rx="0.0em" ry="0.0em" style="fill:#c8c81eff;" >
<title>blockNumber_out</title></rect>
<rect x="5.5em" y="3.8em" width="0.03333333333333333em" height="1.0em" rx="0.0em" ry="0.0em" style="fill:#000000;" />
<rect x="5.5em" y="4.8em" width="1.0em" height="0.03333333333333333em" rx="0.0em" ry="0.0em" style="fill:#000000;" />
<text x="6.7em" y="4.8999999999999995em" class="text" >Nek internal block numbers<tspan> (blockNumber_out)</tspan></text>
</svg>

## Parameters
|name|description|type|
|-|-|-|
|first_step|first timestep to read|Int|
|last_step|last timestep to read (-1: last)|Int|
|step_increment|number of steps to increment|Int|
|first_rank|rank for first partition of first timestep|Int|
|filename|Geometry file path|String|
|OnlyGeometry|Reading only Geometry? yes|no|Int|
|num_ghost_layers|number of ghost layers around eeach partition, a layer consists of whole blocks|Int|
|num_blocks|number of blocks to read from file, <= 0 to read all|Int|
|num_partitions|number of parallel partitions to use for reading, 0 = one partition for each rank|Int|