The Einstein Toolkit thorn list contains a set of thorns for CUDA or OpenCL. These are disabled by default, since many machines don't support this. These thorns are thus checked out by default, but are not built.
I suggest to add these thorns to "enabled-thorns" in Simfactory for these machines. That means that these thorns would also be built by default.
-erik
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Erik Schnetter <schnetter@cct.lsu.edu>
http://www.perimeterinstitute.ca/personal/eschnetter/