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Let FMUs of Buildings find the Spawn executable - #396
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A Buildings model with EnergyPlus looks for the Spawn executable next to modelica://Buildings/legal.html, then on SPAWNPATH and on PATH. In an FMU, legal.html is a copy in the FMU resources, and Spawn (110 MB) is not there. So all EnergyPlus models failed to initialize in the FMI jobs (about 130 rows in master-fmi-cs-cvode, and the same in wasm-jit-cs), with "Failed to find spawn executable". Set SPAWNPATH to the Spawn that install.py puts into the library, for Buildings 12, 13 and latest. The wasm-jit jobs simulate inside omc, which did not get environmentSimulation. Set it in omc with setEnvironmentVar. Assisted-by: Claude Opus 5.5
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A Buildings model with EnergyPlus looks for the Spawn executable next to modelica://Buildings/legal.html, then on SPAWNPATH and on PATH. In an FMU, legal.html is a copy in the FMU resources, and Spawn (110 MB) is not there. So all EnergyPlus models failed to initialize in the FMI jobs (about 130 rows in master-fmi-cs-cvode, and the same in wasm-jit-cs), with "Failed to find spawn executable".
Set SPAWNPATH to the Spawn that install.py puts into the library, for Buildings 12, 13 and latest.
The wasm-jit jobs simulate inside omc, which did not get environmentSimulation. Set it in omc with setEnvironmentVar.
Assisted-by: Claude Opus 5.5