Megatest

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<a class="toc" name="toc-Subsection-3.3.1">3.3.1</a> The Makefile
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A good way to run steps in parallel within a single test, especially when there are following steps, is to use the Unix Make utility. Writing Makefiles is beyond the scope of this document but here is a minimal example that will run “runsim cpu1” and “runsim cpu2” in parallel. For more information on make try “info make” at the Linux command prompt.
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<pre class="listing"># Example Makefile to run two steps in parallel
​
RTLDIR=/path/to/rtl
CPUS = cpu1 cpu2
​
run_simulation_$(CPUS).html : $(RTLDIR)/$(CPUS)
	$(MEGATEST) -runstep run_simulation_$(CPUS) -logpro runsim.logpro "runsim $(CPUS)

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Since no jobs run after the cpu1 and cpu2 simulations in this test it is possible to use iterated mode.
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<h3 class="Subsection">
<a class="toc" name="toc-Subsection-3.4.1">3.4.1</a> Update you testconfig file for iteration
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<pre class="listing">[setup]
runscript main.csh
​
[items]
CPU cpu1 cpu2
</pre>
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<h3 class="Subsection">
<a class="toc" name="toc-Subsection-3.4.2">3.4.2</a> Rewrite your main.csh for iteration
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<pre class="listing">#!/bin/tcsh -x
​
# run the cpu simulation but now use the environment variable $CPU
# to select what cpu to run the simulation against
​
$MEGATEST -runstep run_simulation -logpro runsim.logpro "runsim $CPU"
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info make
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# Example Makefile to run two steps in parallel