Want to build HPX without dynamic libraries

[eschnett]

In the Cactus framework, we recently moved away from using dynamic libraries since these are generally much more difficult to configure and build, and would not give any obvious advantage at run time. (For example, current operating system's demand page loading means that unused parts of the executable will not be loaded into memory.)

Life for me would be simplified if HPX could be built without requiring dynamic libraries.

I tried using a statically-built version of Boost, and then receive the following build errors from HPX:

ld: error: /xfs1/eschnetter/compute/Cbeta/configs/hpx-debug/scratch/external/Bo\
ost/lib/libboost_serialization.a(basic_archive.o): requires dynamic R_X86_64_32\
 reloc which may overflow at runtime; recompile with -fPIC

[brycelelbach]

Erik,

This would be impossible with HPX currently as we make use of runtime linking

to load in components dynamically. I don't think this would be possible without
substantial changes to HPX and the HPX build system.

On 2013.10.07 10.15, Erik Schnetter wrote:

In the Cactus framework, we recently moved away from using dynamic libraries since these are generally much more difficult to configure and build, and would not give any obvious advantage at run time. (For example, current operating system's demand page loading means that unused parts of the executable will not be loaded into memory.)

Life for me would be simplified if HPX could be built without requiring dynamic libraries.

I tried using a statically-built version of Boost, and then receive the following build errors from HPX:

ld: error: /xfs1/eschnetter/compute/Cbeta/configs/hpx-debug/scratch/external/Bo\
ost/lib/libboost_serialization.a(basic_archive.o): requires dynamic R_X86_64_32\
 reloc which may overflow at runtime; recompile with -fPIC

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#934

Bryce Adelstein-Lelbach aka wash

STE||AR Group, Center for Computation and Technology, LSU

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[hkaiser]

Eric, I think this can be done. How urgent is this?

[sithhell]

Am 07.10.2013 19:32 schrieb "Hartmut Kaiser" notifications@github.com:

Eric, I think this can be done. How urgent is this?

I second this request. Switching to static libraries would also speed up
the startup on large scale systems. Additionally we are currently running
into a problem with the dynamic loader on BG/Q.

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[eschnett]

This is one of these "either very soon (week-ish), or not necessary any more" things. If this is more complex, then we'll have to fall back to building some libraries required by Cactus dynamically. (Maybe this is is just Boost?)

I'm not sure this will work everywhere, and if not, we would have to stay away from these systems with HPX.

[hkaiser]

It's definitely nothing I can do in a week.

[sithhell]

FWIW, I was able to make HPX work on BG/Q with dynamic library loading.

[sithhell]

Moving this to 1.0.0 as it doesn't seem to be that time critical