[Boost-users] [Boost.Serialization] Dealing with offsets

Subject: [Boost-users] [Boost.Serialization] Dealing with offsets
From: Júlio Hoffimann (julio.hoffimann_at_[hidden])
Date: 2011-07-27 11:07:40

Dear Boost users/devs,

Suppose i have a simulator S: R^n ---> R such that each run is during about
1 hour. Even using Boost.MPI, is expensive to run thousands of simulations
all the time. To solve this problem, i'm wondering in use
Boost.Serialization to store the pairs inputs/output in a
boost::serialization::binary_archive and check before run if those inputs
had an associated output already.

By reading the Boost.Serialization docs, i can't found a way to deal with
offsets in the archive, in really i don't know if it's possible. My
intention is to get an archive like:

1.3, 2.5, ..., 4.6
0.1, 4.3, ..., 5.0
...
...
123445
1234542
9893
1234
...

and skip the first rows, which are the inputs, to get the associated
outputs. If you have any advice to solve this or know another more
appropriate approach for this restart feature, please let me know. The
second option i have in mind is work with C++ file streams and save the
floating points by using the low-level std::fstream::read
std::fstream::write functions.

Best regards,
Júlio.