/*
* Distributed under the OSI-approved Apache License, Version 2.0. See
* accompanying file Copyright.txt for details.
*/
#include <cstdint>
#include <cstring>
#include <iostream>
#include <stdexcept>
#include <adios2.h>
#include <adios_read.h>
#include <gtest/gtest.h>
#include "../SmallTestData.h"
class BPWriteReadTest : public ::testing::Test
{
public:
BPWriteReadTest() = default;
SmallTestData m_TestData;
};
//******************************************************************************
// 1D 1x8 test data
//******************************************************************************
// ADIOS2 BP write, native ADIOS1 read
TEST_F(BPWriteReadTest, ADIOS2BPWriteADIOS1Read1D8stdio)
{
// Each process would write a 1x8 array and all processes would
// form a mpiSize * Nx 1D array
std::string fname = "ADIOS2BPWriteADIOS1Read1D8stdio.bp";
int mpiRank = 0, mpiSize = 1;
// Number of rows
const std::size_t Nx = 8;
// Number of steps
const std::size_t NSteps = 3;
#ifdef ADIOS2_HAVE_MPI
MPI_Comm_rank(MPI_COMM_WORLD, &mpiRank);
MPI_Comm_size(MPI_COMM_WORLD, &mpiSize);
#endif
// Write test data using BP
{
#ifdef ADIOS2_HAVE_MPI
adios2::ADIOS adios(MPI_COMM_WORLD, adios2::DebugON);
#else
adios2::ADIOS adios(true);
#endif
adios2::IO &io = adios.DeclareIO("TestIO");
// Declare 1D variables (NumOfProcesses * Nx)
// The local process' part (start, count) can be defined now or later
// before Write().
{
adios2::Dims shape{static_cast<unsigned int>(Nx * mpiSize)};
adios2::Dims start{static_cast<unsigned int>(Nx * mpiRank)};
adios2::Dims count{static_cast<unsigned int>(Nx)};
auto &var_i8 = io.DefineVariable<int8_t>("i8", shape, start, count);
auto &var_i16 =
io.DefineVariable<int16_t>("i16", shape, start, count);
auto &var_i32 =
io.DefineVariable<int32_t>("i32", shape, start, count);
auto &var_i64 =
io.DefineVariable<int64_t>("i64", shape, start, count);
auto &var_u8 =
io.DefineVariable<uint8_t>("u8", shape, start, count);
auto &var_u16 =
io.DefineVariable<uint16_t>("u16", shape, start, count);
auto &var_u32 =
io.DefineVariable<uint32_t>("u32", shape, start, count);
auto &var_u64 =
io.DefineVariable<uint64_t>("u64", shape, start, count);
auto &var_r32 =
io.DefineVariable<float>("r32", shape, start, count);
auto &var_r64 =
io.DefineVariable<double>("r64", shape, start, count);
}
// Create the BP Engine
io.SetEngine("BPFileWriter");
#ifdef ADIOS2_HAVE_MPI
io.AddTransport("file", {{"Library", "stdio"}});
#else
io.AddTransport("file");
#endif
// QUESTION: It seems that BPFilterWriter cannot overwrite existing
// files
// Ex. if you tune Nx and NSteps, the test would fail. But if you clear
// the cache in
// ${adios2Build}/testing/adios2/engine/bp/ADIOS2BPWriteADIOS1Read1D8.bp.dir,
// then it works
auto engine = io.Open(fname, adios2::OpenMode::Write);
ASSERT_NE(engine.get(), nullptr);
for (size_t step = 0; step < NSteps; ++step)
{
// Generate test data for each process uniquely
SmallTestData currentTestData =
generateNewSmallTestData(m_TestData, step, mpiRank, mpiSize);
// Retrieve the variables that previously went out of scope
auto &var_i8 = io.GetVariable<int8_t>("i8");
auto &var_i16 = io.GetVariable<int16_t>("i16");
auto &var_i32 = io.GetVariable<int32_t>("i32");
auto &var_i64 = io.GetVariable<int64_t>("i64");
auto &var_u8 = io.GetVariable<uint8_t>("u8");
auto &var_u16 = io.GetVariable<uint16_t>("u16");
auto &var_u32 = io.GetVariable<uint32_t>("u32");
auto &var_u64 = io.GetVariable<uint64_t>("u64");
auto &var_r32 = io.GetVariable<float>("r32");
auto &var_r64 = io.GetVariable<double>("r64");
// Make a 1D selection to describe the local dimensions of the
// variable we write and its offsets in the global spaces
adios2::SelectionBoundingBox sel({mpiRank * Nx}, {Nx});
var_i8.SetSelection(sel);
var_i16.SetSelection(sel);
var_i32.SetSelection(sel);
var_i64.SetSelection(sel);
var_u8.SetSelection(sel);
var_u16.SetSelection(sel);
var_u32.SetSelection(sel);
var_u64.SetSelection(sel);
var_r32.SetSelection(sel);
var_r64.SetSelection(sel);
// Write each one
// fill in the variable with values from starting index to
// starting index + count
engine->Write(var_i8, currentTestData.I8.data());
engine->Write(var_i16, currentTestData.I16.data());
engine->Write(var_i32, currentTestData.I32.data());
engine->Write(var_i64, currentTestData.I64.data());
engine->Write(var_u8, currentTestData.U8.data());
engine->Write(var_u16, currentTestData.U16.data());
engine->Write(var_u32, currentTestData.U32.data());
engine->Write(var_u64, currentTestData.U64.data());
engine->Write(var_r32, currentTestData.R32.data());
engine->Write(var_r64, currentTestData.R64.data());
// Advance to the next time step
engine->Advance();
}
// Close the file
engine->Close();
}
{
adios_read_init_method(ADIOS_READ_METHOD_BP, MPI_COMM_SELF,
"verbose=3");
// Open the file for reading
// Note: Since collective metadata generation is not implemented yet,
// SO for now we read each subfile instead of a single bp file with all
// metadata.
// Meanwhile if we open file with MPI_COMM_WORLD, then the selection
// bounding box should be [0, Nx]
std::string index = std::to_string(mpiRank);
ADIOS_FILE *f = adios_read_open_file(
(fname + ".dir/" + fname + "." + index).c_str(),
ADIOS_READ_METHOD_BP, MPI_COMM_SELF);
ASSERT_NE(f, nullptr);
// Check the variables exist
ADIOS_VARINFO *var_i8 = adios_inq_var(f, "i8");
ASSERT_NE(var_i8, nullptr);
ASSERT_EQ(var_i8->ndim, 1);
ASSERT_EQ(var_i8->global, 1);
ASSERT_EQ(var_i8->nsteps, NSteps);
ASSERT_EQ(var_i8->dims[0], mpiSize * Nx);
ADIOS_VARINFO *var_i16 = adios_inq_var(f, "i16");
ASSERT_NE(var_i16, nullptr);
ASSERT_EQ(var_i16->ndim, 1);
ASSERT_EQ(var_i16->global, 1);
ASSERT_EQ(var_i16->nsteps, NSteps);
ASSERT_EQ(var_i16->dims[0], mpiSize * Nx);
ADIOS_VARINFO *var_i32 = adios_inq_var(f, "i32");
ASSERT_NE(var_i32, nullptr);
ASSERT_EQ(var_i32->ndim, 1);
ASSERT_EQ(var_i32->global, 1);
ASSERT_EQ(var_i32->nsteps, NSteps);
ASSERT_EQ(var_i32->dims[0], mpiSize * Nx);
ADIOS_VARINFO *var_i64 = adios_inq_var(f, "i64");
ASSERT_NE(var_i64, nullptr);
ASSERT_EQ(var_i64->ndim, 1);
ASSERT_EQ(var_i64->global, 1);
ASSERT_EQ(var_i64->nsteps, NSteps);
ASSERT_EQ(var_i64->dims[0], mpiSize * Nx);
ADIOS_VARINFO *var_u8 = adios_inq_var(f, "u8");
ASSERT_NE(var_u8, nullptr);
ASSERT_EQ(var_u8->ndim, 1);
ASSERT_EQ(var_u8->global, 1);
ASSERT_EQ(var_u8->nsteps, NSteps);
ASSERT_EQ(var_u8->dims[0], mpiSize * Nx);
ADIOS_VARINFO *var_u16 = adios_inq_var(f, "u16");
ASSERT_NE(var_u16, nullptr);
ASSERT_EQ(var_u16->ndim, 1);
ASSERT_EQ(var_u16->global, 1);
ASSERT_EQ(var_u16->nsteps, NSteps);
ASSERT_EQ(var_u16->dims[0], mpiSize * Nx);
ADIOS_VARINFO *var_u32 = adios_inq_var(f, "u32");
ASSERT_NE(var_u32, nullptr);
ASSERT_EQ(var_u32->ndim, 1);
ASSERT_EQ(var_u32->global, 1);
ASSERT_EQ(var_u32->nsteps, NSteps);
ASSERT_EQ(var_u32->dims[0], mpiSize * Nx);
ADIOS_VARINFO *var_u64 = adios_inq_var(f, "u64");
ASSERT_NE(var_u64, nullptr);
ASSERT_EQ(var_u64->ndim, 1);
ASSERT_EQ(var_u64->global, 1);
ASSERT_EQ(var_u64->nsteps, NSteps);
ASSERT_EQ(var_u64->dims[0], mpiSize * Nx);
ADIOS_VARINFO *var_r32 = adios_inq_var(f, "r32");
ASSERT_NE(var_r32, nullptr);
ASSERT_EQ(var_r32->ndim, 1);
ASSERT_EQ(var_r32->global, 1);
ASSERT_EQ(var_r32->nsteps, NSteps);
ASSERT_EQ(var_r32->dims[0], mpiSize * Nx);
ADIOS_VARINFO *var_r64 = adios_inq_var(f, "r64");
ASSERT_NE(var_r64, nullptr);
ASSERT_EQ(var_r64->ndim, 1);
ASSERT_EQ(var_r64->global, 1);
ASSERT_EQ(var_r64->nsteps, NSteps);
ASSERT_EQ(var_r64->dims[0], mpiSize * Nx);
std::array<int8_t, Nx> I8;
std::array<int16_t, Nx> I16;
std::array<int32_t, Nx> I32;
std::array<int64_t, Nx> I64;
std::array<uint8_t, Nx> U8;
std::array<uint16_t, Nx> U16;
std::array<uint32_t, Nx> U32;
std::array<uint64_t, Nx> U64;
std::array<float, Nx> R32;
std::array<double, Nx> R64;
uint64_t start[1] = {mpiRank * Nx};
uint64_t count[1] = {Nx};
ADIOS_SELECTION *sel = adios_selection_boundingbox(1, start, count);
// Read stuff
for (size_t t = 0; t < NSteps; ++t)
{
// Generate test data for each rank uniquely
SmallTestData currentTestData =
generateNewSmallTestData(m_TestData, t, mpiRank, mpiSize);
// Read the current step
adios_schedule_read_byid(f, sel, var_i8->varid, t, 1, I8.data());
adios_schedule_read_byid(f, sel, var_i16->varid, t, 1, I16.data());
adios_schedule_read_byid(f, sel, var_i32->varid, t, 1, I32.data());
adios_schedule_read_byid(f, sel, var_i64->varid, t, 1, I64.data());
adios_schedule_read_byid(f, sel, var_u8->varid, t, 1, U8.data());
adios_schedule_read_byid(f, sel, var_u16->varid, t, 1, U16.data());
adios_schedule_read_byid(f, sel, var_u32->varid, t, 1, U32.data());
adios_schedule_read_byid(f, sel, var_u64->varid, t, 1, U64.data());
adios_schedule_read_byid(f, sel, var_r32->varid, t, 1, R32.data());
adios_schedule_read_byid(f, sel, var_r64->varid, t, 1, R64.data());
adios_perform_reads(f, 1);
// Check if it's correct
for (size_t i = 0; i < Nx; ++i)
{
std::stringstream ss;
ss << "t=" << t << " i=" << i << " rank=" << mpiRank;
std::string msg = ss.str();
EXPECT_EQ(I8[i], currentTestData.I8[i]) << msg;
EXPECT_EQ(I16[i], currentTestData.I16[i]) << msg;
EXPECT_EQ(I32[i], currentTestData.I32[i]) << msg;
EXPECT_EQ(I64[i], currentTestData.I64[i]) << msg;
EXPECT_EQ(U8[i], currentTestData.U8[i]) << msg;
EXPECT_EQ(U16[i], currentTestData.U16[i]) << msg;
EXPECT_EQ(U32[i], currentTestData.U32[i]) << msg;
EXPECT_EQ(U64[i], currentTestData.U64[i]) << msg;
EXPECT_EQ(R32[i], currentTestData.R32[i]) << msg;
EXPECT_EQ(R64[i], currentTestData.R64[i]) << msg;
}
}
adios_selection_delete(sel);
// Cleanup variable structures
adios_free_varinfo(var_i8);
adios_free_varinfo(var_i16);
adios_free_varinfo(var_i32);
adios_free_varinfo(var_i64);
adios_free_varinfo(var_u8);
adios_free_varinfo(var_u16);
adios_free_varinfo(var_u32);
adios_free_varinfo(var_u64);
adios_free_varinfo(var_r32);
adios_free_varinfo(var_r64);
// Cleanup file
adios_read_close(f);
adios_read_finalize_method(ADIOS_READ_METHOD_BP);
}
}
// ADIOS2 write, ADIOS2 read
TEST_F(BPWriteReadTest, DISABLED_ADIOS2BPWriteADIOS2BPRead1D8stdio)
{
std::string fname = "ADIOS2BPWriteADIOS2BPRead1D8stdio.bp";
ASSERT_TRUE(false) << "ADIOS2 read API is not yet implemented";
}
//******************************************************************************
// 2D 2x4 test data
//******************************************************************************
// ADIOS2 BP write, native ADIOS1 read
TEST_F(BPWriteReadTest, ADIOS2BPWriteADIOS1Read2D2x4stdio)
{
// Each process would write a 2x4 array and all processes would
// form a 2D 2 * (numberOfProcess*Nx) matrix where Nx is 4 here
std::string fname = "ADIOS2BPWriteADIOS1Read2D2x4Teststdio.bp";
int mpiRank = 0, mpiSize = 1;
// Number of rows
const std::size_t Nx = 4;
// Number of rows
const std::size_t Ny = 2;
// Number of steps
const std::size_t NSteps = 3;
#ifdef ADIOS2_HAVE_MPI
MPI_Comm_rank(MPI_COMM_WORLD, &mpiRank);
MPI_Comm_size(MPI_COMM_WORLD, &mpiSize);
#endif
// Write test data using ADIOS2
{
#ifdef ADIOS2_HAVE_MPI
adios2::ADIOS adios(MPI_COMM_WORLD, adios2::DebugON);
#else
adios2::ADIOS adios(true);
#endif
adios2::IO &io = adios.DeclareIO("TestIO");
// Declare 2D variables (Ny * (NumOfProcesses * Nx))
// The local process' part (start, count) can be defined now or later
// before Write().
{
adios2::Dims shape{static_cast<unsigned int>(Ny),
static_cast<unsigned int>(Nx * mpiSize)};
adios2::Dims start{static_cast<unsigned int>(0),
static_cast<unsigned int>(mpiRank * Nx)};
adios2::Dims count{static_cast<unsigned int>(Ny),
static_cast<unsigned int>(Nx)};
auto &var_i8 = io.DefineVariable<int8_t>("i8", shape, start, count);
auto &var_i16 =
io.DefineVariable<int16_t>("i16", shape, start, count);
auto &var_i32 =
io.DefineVariable<int32_t>("i32", shape, start, count);
auto &var_i64 =
io.DefineVariable<int64_t>("i64", shape, start, count);
auto &var_u8 =
io.DefineVariable<uint8_t>("u8", shape, start, count);
auto &var_u16 =
io.DefineVariable<uint16_t>("u16", shape, start, count);
auto &var_u32 =
io.DefineVariable<uint32_t>("u32", shape, start, count);
auto &var_u64 =
io.DefineVariable<uint64_t>("u64", shape, start, count);
auto &var_r32 =
io.DefineVariable<float>("r32", shape, start, count);
auto &var_r64 =
io.DefineVariable<double>("r64", shape, start, count);
}
// Create the BP Engine
io.SetEngine("BPFileWriter");
#ifdef ADIOS2_HAVE_MPI
io.AddTransport("file", {{"Library", "stdio"}});
#else
io.AddTransport("file");
#endif
auto engine = io.Open(fname, adios2::OpenMode::Write);
ASSERT_NE(engine.get(), nullptr);
for (size_t step = 0; step < NSteps; ++step)
{
// Generate test data for each process uniquely
SmallTestData currentTestData =
generateNewSmallTestData(m_TestData, step, mpiRank, mpiSize);
// Retrieve the variables that previously went out of scope
auto &var_i8 = io.GetVariable<int8_t>("i8");
auto &var_i16 = io.GetVariable<int16_t>("i16");
auto &var_i32 = io.GetVariable<int32_t>("i32");
auto &var_i64 = io.GetVariable<int64_t>("i64");
auto &var_u8 = io.GetVariable<uint8_t>("u8");
auto &var_u16 = io.GetVariable<uint16_t>("u16");
auto &var_u32 = io.GetVariable<uint32_t>("u32");
auto &var_u64 = io.GetVariable<uint64_t>("u64");
auto &var_r32 = io.GetVariable<float>("r32");
auto &var_r64 = io.GetVariable<double>("r64");
// Make a 2D selection to describe the local dimensions of the
// variable we write and its offsets in the global spaces
adios2::SelectionBoundingBox sel(
{0, static_cast<unsigned int>(mpiRank * Nx)}, {Ny, Nx});
var_i8.SetSelection(sel);
var_i16.SetSelection(sel);
var_i32.SetSelection(sel);
var_i64.SetSelection(sel);
var_u8.SetSelection(sel);
var_u16.SetSelection(sel);
var_u32.SetSelection(sel);
var_u64.SetSelection(sel);
var_r32.SetSelection(sel);
var_r64.SetSelection(sel);
// Write each one
// fill in the variable with values from starting index to
// starting index + count
engine->Write(var_i8, currentTestData.I8.data());
engine->Write(var_i16, currentTestData.I16.data());
engine->Write(var_i32, currentTestData.I32.data());
engine->Write(var_i64, currentTestData.I64.data());
engine->Write(var_u8, currentTestData.U8.data());
engine->Write(var_u16, currentTestData.U16.data());
engine->Write(var_u32, currentTestData.U32.data());
engine->Write(var_u64, currentTestData.U64.data());
engine->Write(var_r32, currentTestData.R32.data());
engine->Write(var_r64, currentTestData.R64.data());
// Advance to the next time step
engine->Advance();
}
// Close the file
engine->Close();
}
{
adios_read_init_method(ADIOS_READ_METHOD_BP, MPI_COMM_SELF,
"verbose=3");
// Open the file for reading
// Note: Since collective metadata generation is not implemented yet,
// SO for now we read each subfile instead of a single bp file with all
// metadata.
// Meanwhile if we open file with MPI_COMM_WORLD, then the selection
// bounding box should be [0, Nx]
std::string index = std::to_string(mpiRank);
ADIOS_FILE *f = adios_read_open_file(
(fname + ".dir/" + fname + "." + index).c_str(),
ADIOS_READ_METHOD_BP, MPI_COMM_SELF);
ASSERT_NE(f, nullptr);
// Check the variables exist
ADIOS_VARINFO *var_i8 = adios_inq_var(f, "i8");
ASSERT_NE(var_i8, nullptr);
ASSERT_EQ(var_i8->ndim, 2);
ASSERT_EQ(var_i8->global, 1);
ASSERT_EQ(var_i8->nsteps, NSteps);
ASSERT_EQ(var_i8->dims[0], Ny);
ASSERT_EQ(var_i8->dims[1], mpiSize * Nx);
ADIOS_VARINFO *var_i16 = adios_inq_var(f, "i16");
ASSERT_NE(var_i16, nullptr);
ASSERT_EQ(var_i16->ndim, 2);
ASSERT_EQ(var_i16->global, 1);
ASSERT_EQ(var_i16->nsteps, NSteps);
ASSERT_EQ(var_i16->dims[0], Ny);
ASSERT_EQ(var_i16->dims[1], mpiSize * Nx);
ADIOS_VARINFO *var_i32 = adios_inq_var(f, "i32");
ASSERT_NE(var_i32, nullptr);
ASSERT_EQ(var_i32->ndim, 2);
ASSERT_EQ(var_i32->global, 1);
ASSERT_EQ(var_i32->nsteps, NSteps);
ASSERT_EQ(var_i32->dims[0], Ny);
ASSERT_EQ(var_i32->dims[1], mpiSize * Nx);
ADIOS_VARINFO *var_i64 = adios_inq_var(f, "i64");
ASSERT_NE(var_i64, nullptr);
ASSERT_EQ(var_i64->ndim, 2);
ASSERT_EQ(var_i64->global, 1);
ASSERT_EQ(var_i64->nsteps, NSteps);
ASSERT_EQ(var_i64->dims[0], Ny);
ASSERT_EQ(var_i64->dims[1], mpiSize * Nx);
ADIOS_VARINFO *var_u8 = adios_inq_var(f, "u8");
ASSERT_NE(var_u8, nullptr);
ASSERT_EQ(var_u8->ndim, 2);
ASSERT_EQ(var_u8->global, 1);
ASSERT_EQ(var_u8->nsteps, NSteps);
ASSERT_EQ(var_u8->dims[0], Ny);
ASSERT_EQ(var_u8->dims[1], mpiSize * Nx);
ADIOS_VARINFO *var_u16 = adios_inq_var(f, "u16");
ASSERT_NE(var_u16, nullptr);
ASSERT_EQ(var_u16->ndim, 2);
ASSERT_EQ(var_u16->global, 1);
ASSERT_EQ(var_u16->nsteps, NSteps);
ASSERT_EQ(var_u16->dims[0], Ny);
ASSERT_EQ(var_u16->dims[1], mpiSize * Nx);
ADIOS_VARINFO *var_u32 = adios_inq_var(f, "u32");
ASSERT_NE(var_u32, nullptr);
ASSERT_EQ(var_u32->ndim, 2);
ASSERT_EQ(var_u32->global, 1);
ASSERT_EQ(var_u32->nsteps, NSteps);
ASSERT_EQ(var_u32->dims[0], Ny);
ASSERT_EQ(var_u32->dims[1], mpiSize * Nx);
ADIOS_VARINFO *var_u64 = adios_inq_var(f, "u64");
ASSERT_NE(var_u64, nullptr);
ASSERT_EQ(var_u64->ndim, 2);
ASSERT_EQ(var_u64->global, 1);
ASSERT_EQ(var_u64->nsteps, NSteps);
ASSERT_EQ(var_u64->dims[0], Ny);
ASSERT_EQ(var_u64->dims[1], mpiSize * Nx);
ADIOS_VARINFO *var_r32 = adios_inq_var(f, "r32");
ASSERT_NE(var_r32, nullptr);
ASSERT_EQ(var_r32->ndim, 2);
ASSERT_EQ(var_r32->global, 1);
ASSERT_EQ(var_r32->nsteps, NSteps);
ASSERT_EQ(var_r32->dims[0], Ny);
ASSERT_EQ(var_r32->dims[1], mpiSize * Nx);
ADIOS_VARINFO *var_r64 = adios_inq_var(f, "r64");
ASSERT_NE(var_r64, nullptr);
ASSERT_EQ(var_r64->ndim, 2);
ASSERT_EQ(var_r64->global, 1);
ASSERT_EQ(var_r64->nsteps, NSteps);
ASSERT_EQ(var_r64->dims[0], Ny);
ASSERT_EQ(var_r64->dims[1], mpiSize * Nx);
// If the size of the array is smaller than the data
// the result is weird... double and uint64_t would get completely
// garbage data
std::array<int8_t, Nx * Ny> I8;
std::array<int16_t, Nx * Ny> I16;
std::array<int32_t, Nx * Ny> I32;
std::array<int64_t, Nx * Ny> I64;
std::array<uint8_t, Nx * Ny> U8;
std::array<uint16_t, Nx * Ny> U16;
std::array<uint32_t, Nx * Ny> U32;
std::array<uint64_t, Nx * Ny> U64;
std::array<float, Nx * Ny> R32;
std::array<double, Nx * Ny> R64;
uint64_t start[2] = {0, mpiRank * Nx};
uint64_t count[2] = {Ny, Nx};
ADIOS_SELECTION *sel = adios_selection_boundingbox(2, start, count);
// Read stuff
for (size_t t = 0; t < NSteps; ++t)
{
// Generate test data for each rank uniquely
SmallTestData currentTestData =
generateNewSmallTestData(m_TestData, t, mpiRank, mpiSize);
// Read the current step
adios_schedule_read_byid(f, sel, var_i8->varid, t, 1, I8.data());
adios_schedule_read_byid(f, sel, var_i16->varid, t, 1, I16.data());
adios_schedule_read_byid(f, sel, var_i32->varid, t, 1, I32.data());
adios_schedule_read_byid(f, sel, var_i64->varid, t, 1, I64.data());
adios_schedule_read_byid(f, sel, var_u8->varid, t, 1, U8.data());
adios_schedule_read_byid(f, sel, var_u16->varid, t, 1, U16.data());
adios_schedule_read_byid(f, sel, var_u32->varid, t, 1, U32.data());
adios_schedule_read_byid(f, sel, var_u64->varid, t, 1, U64.data());
adios_schedule_read_byid(f, sel, var_r32->varid, t, 1, R32.data());
adios_schedule_read_byid(f, sel, var_r64->varid, t, 1, R64.data());
adios_perform_reads(f, 1);
// Check if it's correct
for (size_t i = 0; i < Nx; ++i)
{
std::stringstream ss;
ss << "t=" << t << " i=" << i << " rank=" << mpiRank;
std::string msg = ss.str();
EXPECT_EQ(I8[i], currentTestData.I8[i]) << msg;
EXPECT_EQ(I16[i], currentTestData.I16[i]) << msg;
EXPECT_EQ(I32[i], currentTestData.I32[i]) << msg;
EXPECT_EQ(I64[i], currentTestData.I64[i]) << msg;
EXPECT_EQ(U8[i], currentTestData.U8[i]) << msg;
EXPECT_EQ(U16[i], currentTestData.U16[i]) << msg;
EXPECT_EQ(U32[i], currentTestData.U32[i]) << msg;
EXPECT_EQ(U64[i], currentTestData.U64[i]) << msg;
EXPECT_EQ(R32[i], currentTestData.R32[i]) << msg;
EXPECT_EQ(R64[i], currentTestData.R64[i]) << msg;
}
}
adios_selection_delete(sel);
// Cleanup variable structures
adios_free_varinfo(var_i8);
adios_free_varinfo(var_i16);
adios_free_varinfo(var_i32);
adios_free_varinfo(var_i64);
adios_free_varinfo(var_u8);
adios_free_varinfo(var_u16);
adios_free_varinfo(var_u32);
adios_free_varinfo(var_u64);
adios_free_varinfo(var_r32);
adios_free_varinfo(var_r64);
// Cleanup file
adios_read_close(f);
adios_read_finalize_method(ADIOS_READ_METHOD_BP);
}
}
// ADIOS2 write, ADIOS2 read
TEST_F(BPWriteReadTest, DISABLED_ADIOS2BPWriteADIOS2BPRead2D2x4stdio)
{
std::string fname = "ADIOS2BPWriteADIOS2BPRead2D2x4Teststdio.bp";
ASSERT_TRUE(false) << "ADIOS2 read API is not yet implemented";
}
//******************************************************************************
// 2D 4x2 test data
//******************************************************************************
// ADIOS2 write, native ADIOS1 read
TEST_F(BPWriteReadTest, ADIOS2BPWriteADIOS1Read2D4x2stdio)
{
// Each process would write a 4x2 array and all processes would
// form a 2D 4 * (NumberOfProcess * Nx) matrix where Nx is 2 here
std::string fname = "ADIOS2BPWriteADIOS1Read2D4x2Teststdio.bp";
int mpiRank = 0, mpiSize = 1;
// Number of rows
const std::size_t Nx = 2;
// Number of cols
const std::size_t Ny = 4;
// Number of steps
const std::size_t NSteps = 3;
#ifdef ADIOS2_HAVE_MPI
MPI_Comm_rank(MPI_COMM_WORLD, &mpiRank);
MPI_Comm_size(MPI_COMM_WORLD, &mpiSize);
#endif
// Write test data using ADIOS2
{
#ifdef ADIOS2_HAVE_MPI
adios2::ADIOS adios(MPI_COMM_WORLD, adios2::DebugON);
#else
adios2::ADIOS adios(true);
#endif
adios2::IO &io = adios.DeclareIO("TestIO");
// Declare 2D variables (4 * (NumberOfProcess * Nx))
// The local process' part (start, count) can be defined now or later
// before Write().
{
adios2::Dims shape{static_cast<unsigned int>(Ny),
static_cast<unsigned int>(mpiSize * Nx)};
adios2::Dims start{static_cast<unsigned int>(0),
static_cast<unsigned int>(mpiRank * Nx)};
adios2::Dims count{static_cast<unsigned int>(Ny),
static_cast<unsigned int>(Nx)};
auto &var_i8 = io.DefineVariable<int8_t>("i8", shape, start, count);
auto &var_i16 =
io.DefineVariable<int16_t>("i16", shape, start, count);
auto &var_i32 =
io.DefineVariable<int32_t>("i32", shape, start, count);
auto &var_i64 =
io.DefineVariable<int64_t>("i64", shape, start, count);
auto &var_u8 =
io.DefineVariable<uint8_t>("u8", shape, start, count);
auto &var_u16 =
io.DefineVariable<uint16_t>("u16", shape, start, count);
auto &var_u32 =
io.DefineVariable<uint32_t>("u32", shape, start, count);
auto &var_u64 =
io.DefineVariable<uint64_t>("u64", shape, start, count);
auto &var_r32 =
io.DefineVariable<float>("r32", shape, start, count);
auto &var_r64 =
io.DefineVariable<double>("r64", shape, start, count);
}
// Create the BP Engine
io.SetEngine("BPFileWriter");
#ifdef ADIOS2_HAVE_MPI
io.AddTransport("file", {{"Library", "stdio"}});
#else
io.AddTransport("file");
#endif
auto engine = io.Open(fname, adios2::OpenMode::Write);
ASSERT_NE(engine.get(), nullptr);
for (size_t step = 0; step < NSteps; ++step)
{
// Generate test data for each process uniquely
SmallTestData currentTestData =
generateNewSmallTestData(m_TestData, step, mpiRank, mpiSize);
// Retrieve the variables that previously went out of scope
auto &var_i8 = io.GetVariable<int8_t>("i8");
auto &var_i16 = io.GetVariable<int16_t>("i16");
auto &var_i32 = io.GetVariable<int32_t>("i32");
auto &var_i64 = io.GetVariable<int64_t>("i64");
auto &var_u8 = io.GetVariable<uint8_t>("u8");
auto &var_u16 = io.GetVariable<uint16_t>("u16");
auto &var_u32 = io.GetVariable<uint32_t>("u32");
auto &var_u64 = io.GetVariable<uint64_t>("u64");
auto &var_r32 = io.GetVariable<float>("r32");
auto &var_r64 = io.GetVariable<double>("r64");
// Make a 2D selection to describe the local dimensions of the
// variable we write and its offsets in the global spaces
adios2::SelectionBoundingBox sel(
{0, static_cast<unsigned int>(mpiRank * Nx)}, {Ny, Nx});
var_i8.SetSelection(sel);
var_i16.SetSelection(sel);
var_i32.SetSelection(sel);
var_i64.SetSelection(sel);
var_u8.SetSelection(sel);
var_u16.SetSelection(sel);
var_u32.SetSelection(sel);
var_u64.SetSelection(sel);
var_r32.SetSelection(sel);
var_r64.SetSelection(sel);
// Write each one
// fill in the variable with values from starting index to
// starting index + count
engine->Write(var_i8, currentTestData.I8.data());
engine->Write(var_i16, currentTestData.I16.data());
engine->Write(var_i32, currentTestData.I32.data());
engine->Write(var_i64, currentTestData.I64.data());
engine->Write(var_u8, currentTestData.U8.data());
engine->Write(var_u16, currentTestData.U16.data());
engine->Write(var_u32, currentTestData.U32.data());
engine->Write(var_u64, currentTestData.U64.data());
engine->Write(var_r32, currentTestData.R32.data());
engine->Write(var_r64, currentTestData.R64.data());
// Advance to the next time step
engine->Advance();
}
// Close the file
engine->Close();
}
{
adios_read_init_method(ADIOS_READ_METHOD_BP, MPI_COMM_SELF,
"verbose=3");
// Open the file for reading
// Note: Since collective metadata generation is not implemented yet,
// SO for now we read each subfile instead of a single bp file with all
// metadata.
// Meanwhile if we open file with MPI_COMM_WORLD, then the selection
// bounding box should be [0, Nx]
std::string index = std::to_string(mpiRank);
ADIOS_FILE *f = adios_read_open_file(
(fname + ".dir/" + fname + "." + index).c_str(),
ADIOS_READ_METHOD_BP, MPI_COMM_SELF);
ASSERT_NE(f, nullptr);
// Check the variables exist
ADIOS_VARINFO *var_i8 = adios_inq_var(f, "i8");
ASSERT_NE(var_i8, nullptr);
ASSERT_EQ(var_i8->ndim, 2);
ASSERT_EQ(var_i8->global, 1);
ASSERT_EQ(var_i8->nsteps, NSteps);
ASSERT_EQ(var_i8->dims[0], Ny);
ASSERT_EQ(var_i8->dims[1], mpiSize * Nx);
ADIOS_VARINFO *var_i16 = adios_inq_var(f, "i16");
ASSERT_NE(var_i16, nullptr);
ASSERT_EQ(var_i16->ndim, 2);
ASSERT_EQ(var_i16->global, 1);
ASSERT_EQ(var_i16->nsteps, NSteps);
ASSERT_EQ(var_i16->dims[0], Ny);
ASSERT_EQ(var_i16->dims[1], mpiSize * Nx);
ADIOS_VARINFO *var_i32 = adios_inq_var(f, "i32");
ASSERT_NE(var_i32, nullptr);
ASSERT_EQ(var_i32->ndim, 2);
ASSERT_EQ(var_i32->global, 1);
ASSERT_EQ(var_i32->nsteps, NSteps);
ASSERT_EQ(var_i32->dims[0], Ny);
ASSERT_EQ(var_i32->dims[1], mpiSize * Nx);
ADIOS_VARINFO *var_i64 = adios_inq_var(f, "i64");
ASSERT_NE(var_i64, nullptr);
ASSERT_EQ(var_i64->ndim, 2);
ASSERT_EQ(var_i64->global, 1);
ASSERT_EQ(var_i64->nsteps, NSteps);
ASSERT_EQ(var_i64->dims[0], Ny);
ASSERT_EQ(var_i64->dims[1], mpiSize * Nx);
ADIOS_VARINFO *var_u8 = adios_inq_var(f, "u8");
ASSERT_NE(var_u8, nullptr);
ASSERT_EQ(var_u8->ndim, 2);
ASSERT_EQ(var_u8->global, 1);
ASSERT_EQ(var_u8->nsteps, NSteps);
ASSERT_EQ(var_u8->dims[0], Ny);
ASSERT_EQ(var_u8->dims[1], mpiSize * Nx);
ADIOS_VARINFO *var_u16 = adios_inq_var(f, "u16");
ASSERT_NE(var_u16, nullptr);
ASSERT_EQ(var_u16->ndim, 2);
ASSERT_EQ(var_u16->global, 1);
ASSERT_EQ(var_u16->nsteps, NSteps);
ASSERT_EQ(var_u16->dims[0], Ny);
ASSERT_EQ(var_u16->dims[1], mpiSize * Nx);
ADIOS_VARINFO *var_u32 = adios_inq_var(f, "u32");
ASSERT_NE(var_u32, nullptr);
ASSERT_EQ(var_u32->ndim, 2);
ASSERT_EQ(var_u32->global, 1);
ASSERT_EQ(var_u32->nsteps, NSteps);
ASSERT_EQ(var_u32->dims[0], Ny);
ASSERT_EQ(var_u32->dims[1], mpiSize * Nx);
ADIOS_VARINFO *var_u64 = adios_inq_var(f, "u64");
ASSERT_NE(var_u64, nullptr);
ASSERT_EQ(var_u64->ndim, 2);
ASSERT_EQ(var_u64->global, 1);
ASSERT_EQ(var_u64->nsteps, NSteps);
ASSERT_EQ(var_u64->dims[0], Ny);
ASSERT_EQ(var_u64->dims[1], mpiSize * Nx);
ADIOS_VARINFO *var_r32 = adios_inq_var(f, "r32");
ASSERT_NE(var_r32, nullptr);
ASSERT_EQ(var_r32->ndim, 2);
ASSERT_EQ(var_r32->global, 1);
ASSERT_EQ(var_r32->nsteps, NSteps);
ASSERT_EQ(var_r32->dims[0], Ny);
ASSERT_EQ(var_r32->dims[1], mpiSize * Nx);
ADIOS_VARINFO *var_r64 = adios_inq_var(f, "r64");
ASSERT_NE(var_r64, nullptr);
ASSERT_EQ(var_r64->ndim, 2);
ASSERT_EQ(var_r64->global, 1);
ASSERT_EQ(var_r64->nsteps, NSteps);
ASSERT_EQ(var_r64->dims[0], Ny);
ASSERT_EQ(var_r64->dims[1], mpiSize * Nx);
// If the size of the array is smaller than the data
// the result is weird... double and uint64_t would get completely
// garbage data
std::array<int8_t, Nx * Ny> I8;
std::array<int16_t, Nx * Ny> I16;
std::array<int32_t, Nx * Ny> I32;
std::array<int64_t, Nx * Ny> I64;
std::array<uint8_t, Nx * Ny> U8;
std::array<uint16_t, Nx * Ny> U16;
std::array<uint32_t, Nx * Ny> U32;
std::array<uint64_t, Nx * Ny> U64;
std::array<float, Nx * Ny> R32;
std::array<double, Nx * Ny> R64;
uint64_t start[2] = {0, mpiRank * Nx};
uint64_t count[2] = {Ny, Nx};
ADIOS_SELECTION *sel = adios_selection_boundingbox(2, start, count);
// Read stuff
for (size_t t = 0; t < NSteps; ++t)
{
// Generate test data for each rank uniquely
SmallTestData currentTestData =
generateNewSmallTestData(m_TestData, t, mpiRank, mpiSize);
// Read the current step
adios_schedule_read_byid(f, sel, var_i8->varid, t, 1, I8.data());
adios_schedule_read_byid(f, sel, var_i16->varid, t, 1, I16.data());
adios_schedule_read_byid(f, sel, var_i32->varid, t, 1, I32.data());
adios_schedule_read_byid(f, sel, var_i64->varid, t, 1, I64.data());
adios_schedule_read_byid(f, sel, var_u8->varid, t, 1, U8.data());
adios_schedule_read_byid(f, sel, var_u16->varid, t, 1, U16.data());
adios_schedule_read_byid(f, sel, var_u32->varid, t, 1, U32.data());
adios_schedule_read_byid(f, sel, var_u64->varid, t, 1, U64.data());
adios_schedule_read_byid(f, sel, var_r32->varid, t, 1, R32.data());
adios_schedule_read_byid(f, sel, var_r64->varid, t, 1, R64.data());
adios_perform_reads(f, 1);
// Check if it's correct
for (size_t i = 0; i < Nx; ++i)
{
std::stringstream ss;
ss << "t=" << t << " i=" << i << " rank=" << mpiRank;
std::string msg = ss.str();
EXPECT_EQ(I8[i], currentTestData.I8[i]) << msg;
EXPECT_EQ(I16[i], currentTestData.I16[i]) << msg;
EXPECT_EQ(I32[i], currentTestData.I32[i]) << msg;
EXPECT_EQ(I64[i], currentTestData.I64[i]) << msg;
EXPECT_EQ(U8[i], currentTestData.U8[i]) << msg;
EXPECT_EQ(U16[i], currentTestData.U16[i]) << msg;
EXPECT_EQ(U32[i], currentTestData.U32[i]) << msg;
EXPECT_EQ(U64[i], currentTestData.U64[i]) << msg;
EXPECT_EQ(R32[i], currentTestData.R32[i]) << msg;
EXPECT_EQ(R64[i], currentTestData.R64[i]) << msg;
}
}
adios_selection_delete(sel);
// Cleanup variable structures
adios_free_varinfo(var_i8);
adios_free_varinfo(var_i16);
adios_free_varinfo(var_i32);
adios_free_varinfo(var_i64);
adios_free_varinfo(var_u8);
adios_free_varinfo(var_u16);
adios_free_varinfo(var_u32);
adios_free_varinfo(var_u64);
adios_free_varinfo(var_r32);
adios_free_varinfo(var_r64);
// Cleanup file
adios_read_close(f);
adios_read_finalize_method(ADIOS_READ_METHOD_BP);
}
}
// ADIOS2 write, ADIOS2 read
TEST_F(BPWriteReadTest, DISABLED_ADIOS2BPWriteADIOS2BPRead2D4x2stdio)
{
std::string fname = "ADIOS2BPWriteADIOS2BPRead2D4x2Teststdio.bp";
ASSERT_TRUE(false) << "ADIOS2 read API is not yet implemented";
}
//******************************************************************************
// main
//******************************************************************************
int main(int argc, char **argv)
{
#ifdef ADIOS2_HAVE_MPI
MPI_Init(nullptr, nullptr);
#endif
::testing::InitGoogleTest(&argc, argv);
int result = RUN_ALL_TESTS();
#ifdef ADIOS2_HAVE_MPI
MPI_Finalize();
#endif
return result;
}