serialization of arrays

[aaragon]

Hello everyone,

I've been trying to create a simple way to serialize C++ objects so I
can send messages among different processors (using MPI). Something
very simple is shown below:

template <class StorageType>
void Send(StorageTyp e& c, int dest, int tag, MPI_Comm comm) {

typedef typename StorageType::Va lueType ValueType;

int size = c.size()*sizeof (ValueType);
char* buffer[size];
memcpy(buffer, &c[0], size);

MPI_Send(&buffe r, size, MPI_BYTE, dest, tag, comm);
}

I tested the templated function with arrays of integers and it works
fine. However, when I try to use the dynamic_bitset provided by the
boost library, I cannot pass a reference to c[0] because operator& is
private for that class. Is there another efficient way to do a bitwise
copy???

Thank you all,

a²

[Jeff F]

"aaragon" <al************ **@gmail.comwro te in message
news:11******** **************@ r29g2000hsg.goo glegroups.com.. .

On Sep 3, 5:50 pm, "Jeff F" <norepl...@plea se.comwrote:

On 2007-09-03 22:48, aaragon wrote:
Hello everyone,

>I've been trying to create a simple way to serialize C++ objects so I
can send messages among different processors (using MPI). Something

The boost mpi library does this already. While not in the 1.34.1 released
version it's available from their svn/cvs site.

I could use the boost library in my machine. However, I doubt that the
cluster I will run the parallel program on will have the latest
version of the boost library.

Don't you compile/link on your machine and transmit exe's to the cluster?
I'm not sure why they would need boost installed?

Jeff Flinn