Slow calculation speed on Macos

Question

I am using Macbook pro (mid-2014) with OpenLCA 1.10.3 and Ecoinvent database. The configuration of my Mac are as following:

- Processor: 2.8 GHz Intel Core i7

- RAM 16 Gb

- Graphics: NDVI Geforce GT 750 M 2Gb

However, the calculation speed for unit processes in Ecoinvent extremely low compare to my Dell laptop (Intel Core i7 4600U 2.1 GHz, 16 Gb RAM). Two computer use the same version of OpenLCA and Ecoinvent 3.7. I do not know if it is caused by different OS or there is something wrong with OpenLCA on my Macbook? Thank you so much for your response!

PS: I attached the log file here. It seems that Julia library has been loaded.

ime	Thread	Level	Category	Message
0	main	INFO	org.openlca	Log-level=INFO
2	main	INFO	org.openlca.app.rcp.RcpActivator	start openLCA 1.10.3, install location=/Applications/openLCA10.3.app/Contents/Eclipse, workspace=/Users/LDA/openLCA-data-1.4
8	main	INFO	org.openlca.julia.Julia	Try to load Julia libs and bindings from /Applications/openLCA10.3.app/Contents/Eclipse
9	main	INFO	org.openlca.julia.Julia	loaded native library /Applications/openLCA10.3.app/Contents/Eclipse/libgcc_s.1.dylib
10	main	INFO	org.openlca.julia.Julia	loaded native library /Applications/openLCA10.3.app/Contents/Eclipse/libquadmath.0.dylib
10	main	INFO	org.openlca.julia.Julia	loaded native library /Applications/openLCA10.3.app/Contents/Eclipse/libgfortran.5.dylib
14	main	INFO	org.openlca.julia.Julia	loaded native library /Applications/openLCA10.3.app/Contents/Eclipse/libopenblas64_.0.3.5.dylib
14	main	INFO	org.openlca.julia.Julia	loaded native library /Applications/openLCA10.3.app/Contents/Eclipse/libolcar.dylib
14	main	INFO	org.openlca.julia.Julia	Math libraries loaded without UMFPACK support.
15	main	INFO	org.openlca.app.App	Loaded math libraries from /Applications/openLCA10.3.app/Contents/Eclipse
3064	main	INFO	org.openlca.app.db.DatabaseList	read database configurations from /Users/LDA/openLCA-data-1.4/databases.json
52905	ModalContext	INFO	org.openlca.core.database.derby.DerbyDatabase	initialize database folder /Users/LDA/openLCA-data-1.4/databases/Ecoinvent_v3_7, create=false
20152432	Framework stop	INFO	org.openlca.app.rcp.RcpActivator	close database
20152525	Framework stop	INFO	org.openlca.core.database.derby.DerbyDatabase	database closed

Answer 1

Hi, indeed, the numerical libraries depend on the operation system; you will maybe see a "cannot load Julia libraries" in the log file on the Mac, in which case the rather slow default libraries are used. You can try to fix this yourself, see please here: https://ask.openlca.org/1833/julia-libs-and-bindings-been-loaded-from-spring-tools-suite?show=1833#q1833.

Comments

Thank you Andreas for your response. I have checked the log file and it seems the Julia library has been loaded. So is there any other cause that make the more powerful laptop slower in calculation with OpenLCA?