Intel Cluster Studio XE has various tools. Does these tools support following features, whichever applicable to them:
Support for Global Process Synchronization
User friendly programming environment with source-level debuggers, profilers and support of MPI
Support for IEEE standard floating point and complex data types
Support of 128-bit real and 256-bit complex data types
Some of these questions are covered by the descriptions of the individual tools. You might start by web searches such as
yourtopic site: software.intel.com
so as to see where they have been discussed and on which forum they may be topical. Only the profiler part is topical here.
IEEE 128-bit software floating point is a fully supported feature of Intel Fortran compilers, partially supported by Intel C++.
Intel MPI is discussed primarily on the HPC and Cluster forum.
Debugger support is provided in the compiler "composer" packages, differing significantly between Windows, linux, and MAC targets.