alpha-unito/gam

A C++ stack for global-memory programming

gam's Issues

tests failing on travis

fix use_count() calls from non-author ranks

documentation

• README
  • how to deal with libfabric at "non-standard" paths
• more Doxygen-friendly documentation (?)

rename dff2 namespace

Rename dff2 namespace to something more similar to GAM nets.

CTest

Related to #15.

do not change global address upon publishing

simplify logging

Print everything to stdout

error handling

• homogeneous error handling system (C++ exceptions?)
• double-check asserts

allow converting public pointers to unique pointers

drop python-based launcher

slurm-based launcher

avoid fi_av_insertsvc

Some providers (e.g., gni) do not implement it.

implement/specify thread safety

RMA-based remote loads

Allocate backend memory for global pointers from RMA-enabled windows.

connection-oriented links

some libfabric providers (e.g., dpa for A3CUBE fabrics) supports only connection-oriented endpoints. Connection-oriented links would allow to run gam on such fabrics.

linking issues with multiple compilation units

travis not testing linux platforms

Known issues with building libfabric from sources and using it on current linux distros on travis. Hopefully this will be fixed when travis support newer distros, with native libfabric packages.

coding style

change coding style to K&R

Project structure

support non-trivially-copyable types

context-less pointer metadata

libfabric version

CMake build fails

CMake build fails on Ubuntu 17.10 with the following error

[ 15%] Linking CXX executable simple_public
/usr/bin/ld: CMakeFiles/simple_public.dir/simple_public.cpp.o: undefined reference to symbol 'pthread_create@@GLIBC_2.2.5'
//lib/x86_64-linux-gnu/libpthread.so.0: error adding symbols: DSO missing from command line

Build by:

$ cd gam
$ mkdir build
$ cd build
$ cmake -DLIBFABRIC_LIBRARY_DIRS=/usr/lib/x86_64-linux-gnu/ -D LIBFABRIC_INCLUDE_DIRS=/usr/include/rdma/ ..
$ make

MPI-based launcher

simplify global-address generation

Build fails on linux+clang

unit tests

Test each function in the private/public pointer API.

travis

fix .travis.yml file

support cyclic graphs

• check existing runtime supports cyclic configurations
• add support for cyclic GAM nets

include <vector> missing from defs.hpp

gff tests not compiling with new support of non-trivially copiable types. Compile complains about missing vector definition.

Adding #include vector to defs.hpp fixes the bug.

caching causes memory explosion without address reusing

fl_getinfo fails

Ubuntu 17.10 with libfabric 1.4.0 installed from apt.

fl_getinfo fails when performing trivial operations in gam (possibly before doing anything, when creating the context).

gam_unit_test: ../3rdparty/gam/include/gam/links_implementations/fl_common.hpp:63: void gam::fl_getinfo(fi_info**, const char*, const char*, uint64_t, fi_ep_type, uint64_t): Assertion `!ret' failed.

Fix wrapped_allocator usage

fix output from run scripts

CMake

• include libfabric (see ADIOS2)
• expose as library

Licensing