mpp

int main()
{
	MPI_Status status;
	int nrprocese, rank;
	srand((time(NULL)));
	int rc = MPI_Init(NULL, NULL);
	if (rc != MPI_SUCCESS) {
		cout << " ERR mpi" << endl;
		MPI_Abort(MPI_COMM_WORLD, rc);
	}
	MPI_Comm_size(MPI_COMM_WORLD, &nrprocese);
	MPI_Comm_rank(MPI_COMM_WORLD, &rank);
	//cout << rank << " from " << nrprocese << endl;
	unsigned char* number1_p = NULL;
	unsigned char* number2_p = NULL;
	int size_per_proc = digitsNo / nrprocese;
	unsigned char carry;
	unsigned char* result = (unsigned char*)malloc(sizeof(unsigned char) * digitsNo + 2);
	unsigned char * subset_number1 = (unsigned char*)malloc(sizeof(unsigned char) * size_per_proc);
	unsigned char* subset_number2 = (unsigned char*)malloc(sizeof(unsigned char) * size_per_proc);
	if (rank == 0) {
		//cout << "Root:";
		int digi = digitsNo;
		Utils u;
		u.newFileUpdated("file11.txt", 2, digi, digi);
		auto numbers = u.readFromFile("file11.txt");
		const auto number1 = numbers[0];
		const auto number2 = numbers[1];
		number1_p = (unsigned char*) malloc(sizeof(unsigned char) * number1.size());
		number2_p = (unsigned char*)malloc(sizeof(unsigned char) * number2.size());
		for (int i = 0; i < number1.size(); i++) {
			number1_p[i] = number1[i];
			number2_p[i] = number2[i];
		}
		carry = 0;
		cout << " NUMBER 1:" << convertNumberToString_v2(number1_p, number1.size()) << "\n";
		cout << " NUMBER 2:" << convertNumberToString_v2(number2_p, number2.size()) << "\n";
		MPI_Send(&carry, 1, MPI_UNSIGNED_CHAR, rank + 1, 0, MPI_COMM_WORLD);
	}
	MPI_Scatter(number1_p, size_per_proc, MPI_UNSIGNED_CHAR, subset_number1, size_per_proc, MPI_UNSIGNED_CHAR, 0, MPI_COMM_WORLD);
	MPI_Scatter(number2_p, size_per_proc, MPI_UNSIGNED_CHAR, subset_number2, size_per_proc, MPI_UNSIGNED_CHAR, 0, MPI_COMM_WORLD);
	unsigned char* sub_result = (unsigned char*)malloc(sizeof(unsigned char) * size_per_proc);
	cout << " Proc" << rank << "::" << convertNumberToString_v2(subset_number1, size_per_proc) << "\n";
	/*if (rank != 0) {
		for (int i = 0; i < size_per_proc; i++) {
			sub_result[i] = number1_p[i] + number2_p[i];
		}
	}*/

	MPI_Recv(&carry,1,MPI_UNSIGNED_CHAR, rank-1,0,MPI_COMM_WORLD,&status);
	cout << "Carry venit:" << carry << " din proc:" << rank - 1 << "\n";

	for (int i = 0; i < size_per_proc; i++) {
		sub_result[i] = number1_p[i] + number2_p[i] + carry;
		carry = sub_result[i] / 10;
	}

	if (rank == nrprocese - 1) {
		MPI_Send(&carry, 1, MPI_UNSIGNED_CHAR, 0, 0, MPI_COMM_WORLD);
	}

	MPI_Gather(sub_result, size_per_proc, MPI_UNSIGNED_CHAR, result, size_per_proc, MPI_UNSIGNED_CHAR, 0, MPI_COMM_WORLD);
	if (rank == 0) {
		cout << "Last carry is:" << carry << "\n";
		MPI_Recv(&carry, 1, MPI_UNSIGNED_CHAR, nrprocese - 1, 0, MPI_COMM_WORLD, &status);
		if (carry == 1) {
			result[digitsNo + 1] = 1;
		}
		cout << "RESULT:" << convertNumberToString_v2(result,digitsNo+1);
	}
	MPI_Finalize();