OpenSpeedShop is a community effort led by Trenza, Inc. It builds on top of a broad list of community infrastructures, most notably Dyninst and MRNet from UW, libmonitor from Rice, and PAPI from UTK. OpenSpeedShop is an open source multi platform Linux performance tool which is targeted to support performance analysis of applications running on both single node and large scale IA64, IA32, EM64T, AMD64, PPC, ARM, Power8, Intel Phi, Blue Gene and Cray platforms. OpenSpeedShop development is hosted by Trenza Inc.. The infrastructure and base components of OpenSpeedShop are released as open source code primarily under LGPL. openspeedshop- utils is a package that does not have the qt3 gui. It was created to avoid a conflict between openspeedshop and cbtf-argonavis-gui based on the fact that spack will not allow a qt3 and qt4/qt5 dependency in a packages dependency tree.