Alien-XGBoost
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requires 'Path::Tiny';
};
my $cpu_count = $ENV{ALIEN_XGBOOST_CPUCOUNT} || Sys::Info->new()->device('CPU')->count;
my $name = 'xgboost';
my $command = 'xgboost' . $Config{'_exe'};
probe sub {
my ($library) = FFI::CheckLib::find_lib_or_die(
lib => $name,
verify => sub {
my ( $name, $libpath ) = @_;
my $platypus = FFI::Platypus->new;
$platypus->lib($libpath);
my $f =
$platypus->function( 'XGDMatrixCreateFromMat_omp', [] => 'int' ); # This function was defined recently
}
);
return ( defined $library ? 'system' : 'share' );
};
xgboost/R-package/R/xgb.Booster.R view on Meta::CPAN
#'
#' # Predicting tree leafs:
#' # the result is an nsamples X ntrees matrix
#' pred_leaf <- predict(bst, test$data, predleaf = TRUE)
#' str(pred_leaf)
#'
#' # Predicting feature contributions to predictions:
#' # the result is an nsamples X (nfeatures + 1) matrix
#' pred_contr <- predict(bst, test$data, predcontrib = TRUE)
#' str(pred_contr)
#' # verify that contributions' sums are equal to log-odds of predictions (up to foat precision):
#' summary(rowSums(pred_contr) - qlogis(pred))
#' # for the 1st record, let's inspect its features that had non-zero contribution to prediction:
#' contr1 <- pred_contr[1,]
#' contr1 <- contr1[-length(contr1)] # drop BIAS
#' contr1 <- contr1[contr1 != 0] # drop non-contributing features
#' contr1 <- contr1[order(abs(contr1))] # order by contribution magnitude
#' old_mar <- par("mar")
#' par(mar = old_mar + c(0,7,0,0))
#' barplot(contr1, horiz = TRUE, las = 2, xlab = "contribution to prediction in log-odds")
#' par(mar = old_mar)
xgboost/R-package/man/predict.xgb.Booster.Rd view on Meta::CPAN
# Predicting tree leafs:
# the result is an nsamples X ntrees matrix
pred_leaf <- predict(bst, test$data, predleaf = TRUE)
str(pred_leaf)
# Predicting feature contributions to predictions:
# the result is an nsamples X (nfeatures + 1) matrix
pred_contr <- predict(bst, test$data, predcontrib = TRUE)
str(pred_contr)
# verify that contributions' sums are equal to log-odds of predictions (up to foat precision):
summary(rowSums(pred_contr) - qlogis(pred))
# for the 1st record, let's inspect its features that had non-zero contribution to prediction:
contr1 <- pred_contr[1,]
contr1 <- contr1[-length(contr1)] # drop BIAS
contr1 <- contr1[contr1 != 0] # drop non-contributing features
contr1 <- contr1[order(abs(contr1))] # order by contribution magnitude
old_mar <- par("mar")
par(mar = old_mar + c(0,7,0,0))
barplot(contr1, horiz = TRUE, las = 2, xlab = "contribution to prediction in log-odds")
par(mar = old_mar)
xgboost/cub/experimental/histogram_compare.cu view on Meta::CPAN
const int height,
unsigned int * d_hist,
unsigned int * h_hist,
int timing_iterations,
const char * long_name,
const char * short_name,
double (*f)(PixelType*, int, int, unsigned int*, bool))
{
if (!g_report) printf("%s ", long_name); fflush(stdout);
// Run single test to verify (and code cache)
(*f)(d_pixels, width, height, d_hist, !g_report);
int compare = CompareDeviceResults(h_hist, d_hist, ACTIVE_CHANNELS * NUM_BINS, true, g_verbose);
if (!g_report) printf("\t%s\n", compare ? "FAIL" : "PASS"); fflush(stdout);
double elapsed_ms = 0;
for (int i = 0; i < timing_iterations; i++)
{
elapsed_ms += (*f)(d_pixels, width, height, d_hist, false);
}
xgboost/cub/tune/tune_device_reduce.cu view on Meta::CPAN
#ifndef TUNE_ARCH
#define TUNE_ARCH 100
#endif
int g_max_items = 48 * 1024 * 1024;
int g_samples = 100;
int g_timing_iterations = 2;
bool g_verbose = false;
bool g_single = false;
bool g_verify = true;
CachingDeviceAllocator g_allocator;
//---------------------------------------------------------------------
// Host utility subroutines
//---------------------------------------------------------------------
/**
* Initialize problem
*/
xgboost/cub/tune/tune_device_reduce.cu view on Meta::CPAN
void TestConfiguration(
MultiDispatchTuple &multi_dispatch,
SingleDispatchTuple &single_dispatch,
T* d_in,
T* d_out,
T* h_reference,
OffsetT num_items,
ReductionOp reduction_op)
{
// Clear output
if (g_verify) CubDebugExit(cudaMemset(d_out, 0, sizeof(T)));
// Allocate temporary storage
void *d_temp_storage = NULL;
size_t temp_storage_bytes = 0;
CubDebugExit(DeviceReduce::Dispatch(
d_temp_storage,
temp_storage_bytes,
multi_dispatch.kernel_ptr,
single_dispatch.kernel_ptr,
FillAndResetDrainKernel<OffsetT>,
xgboost/cub/tune/tune_device_reduce.cu view on Meta::CPAN
multi_dispatch.kernel_ptr,
single_dispatch.kernel_ptr,
FillAndResetDrainKernel<OffsetT>,
multi_dispatch.params,
single_dispatch.params,
d_in,
d_out,
num_items,
reduction_op));
if (g_verify) CubDebugExit(cudaDeviceSynchronize());
// Copy out and display results
int compare = (g_verify) ?
CompareDeviceResults(h_reference, d_out, 1, true, false) :
0;
// Performance
GpuTimer gpu_timer;
float elapsed_millis = 0.0;
for (int i = 0; i < g_timing_iterations; i++)
{
gpu_timer.Start();
xgboost/cub/tune/tune_device_reduce.cu view on Meta::CPAN
*/
int main(int argc, char** argv)
{
// Initialize command line
CommandLineArgs args(argc, argv);
args.GetCmdLineArgument("n", g_max_items);
args.GetCmdLineArgument("s", g_samples);
args.GetCmdLineArgument("i", g_timing_iterations);
g_verbose = args.CheckCmdLineFlag("v");
g_single = args.CheckCmdLineFlag("single");
g_verify = !args.CheckCmdLineFlag("noverify");
// Print usage
if (args.CheckCmdLineFlag("help"))
{
printf("%s "
"[--device=<device-id>] "
"[--n=<max items>]"
"[--s=<samples>]"
"[--i=<timing iterations>]"
"[--single]"
"[--v]"
"[--noverify]"
"\n", argv[0]);
exit(0);
}
// Initialize device
CubDebugExit(args.DeviceInit());
#if (TUNE_SIZE == 1)
typedef unsigned char T;
#elif (TUNE_SIZE == 2)
xgboost/dmlc-core/tracker/dmlc_tracker/tracker.py view on Meta::CPAN
return struct.unpack('@i', self.recvall(4))[0]
def sendint(self, n):
self.sock.sendall(struct.pack('@i', n))
def sendstr(self, s):
self.sendint(len(s))
self.sock.sendall(s.encode())
def recvstr(self):
slen = self.recvint()
return self.recvall(slen).decode()
# magic number used to verify existence of data
kMagic = 0xff99
def get_some_ip(host):
return socket.getaddrinfo(host, None)[0][4][0]
def get_family(addr):
return socket.getaddrinfo(addr, None)[0][0]
class SlaveEntry(object):
def __init__(self, sock, s_addr):
xgboost/doc/python/python_intro.md view on Meta::CPAN
Install XGBoost
---------------
To install XGBoost, do the following:
* Run `make` in the root directory of the project
* In the `python-package` directory, run
```shell
python setup.py install
```
To verify your installation, try to `import xgboost` in Python.
```python
import xgboost as xgb
```
Data Interface
--------------
The XGBoost python module is able to load data from:
- libsvm txt format file
- Numpy 2D array, and
- xgboost binary buffer file.
xgboost/jvm-packages/pom.xml view on Meta::CPAN
</excludePackageNames>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-source-plugin</artifactId>
<version>3.0.1</version>
<executions>
<execution>
<id>attach-sources</id>
<phase>verify</phase>
<goals>
<goal>jar-no-fork</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<groupId>net.alchim31.maven</groupId>
<artifactId>maven-site-plugin</artifactId>
<version>3.0</version>
xgboost/jvm-packages/xgboost4j/src/main/scala/ml/dmlc/xgboost4j/scala/rabit/handler/RabitWorkerHandler.scala view on Meta::CPAN
assert(purportedMagic == MAGIC_NUMBER, s"invalid magic number $purportedMagic from $host")
// echo back the magic number
connection ! Tcp.Write(magic)
goto(AwaitingCommand) using StructTrackerCommand
}
when(AwaitingCommand) {
case Event(Tcp.Received(bytes), validator) =>
bytes.asByteBuffers.foreach { buf => readBuffer.put(buf) }
if (validator.verify(readBuffer)) {
Try(decodeCommand(readBuffer)) match {
case scala.util.Success(decodedCommand) =>
tracker ! decodedCommand
case scala.util.Failure(th: java.nio.BufferUnderflowException) =>
// BufferUnderflowException would occur if the message to print has not arrived yet.
// Do nothing, wait for next Tcp.Received event
case scala.util.Failure(th: Throwable) => throw th
}
}
xgboost/jvm-packages/xgboost4j/src/main/scala/ml/dmlc/xgboost4j/scala/rabit/handler/RabitWorkerHandler.scala view on Meta::CPAN
connection ! Tcp.SuspendReading
goto(BuildingLinkMap) using StructNodes
}
when(BuildingLinkMap) {
case Event(Tcp.Received(bytes), validator) =>
bytes.asByteBuffers.foreach { buf =>
readBuffer.put(buf)
}
if (validator.verify(readBuffer)) {
readBuffer.flip()
// for a freshly started worker, numConnected should be 0.
val numConnected = readBuffer.getInt()
val toConnectSet = neighboringWorkers.diff(
(0 until numConnected).map { index => readBuffer.getInt() }.toSet)
// check which workers are currently awaiting connections
tracker ! RequestAwaitConnWorkers(rank, toConnectSet)
}
stay
xgboost/jvm-packages/xgboost4j/src/main/scala/ml/dmlc/xgboost4j/scala/rabit/handler/RabitWorkerHandler.scala view on Meta::CPAN
sealed trait DataField
case object IntField extends DataField
// an integer preceding the actual string
case object StringField extends DataField
case object IntSeqField extends DataField
object DataStruct {
def apply(): DataStruct = DataStruct(Seq.empty[DataField], 0)
}
// Internal data pertaining to individual state, used to verify the validity of packets sent by
// workers.
case class DataStruct(fields: Seq[DataField], counter: Int) {
/**
* Validate whether the provided buffer is complete (i.e., contains
* all data fields specified for this DataStruct.)
*
* @param buf a byte buffer containing received data.
*/
def verify(buf: ByteBuffer): Boolean = {
if (fields.isEmpty) return true
val dupBuf = buf.duplicate().order(ByteOrder.nativeOrder())
dupBuf.flip()
Try(fields.foldLeft(true) {
case (complete, field) =>
val remBytes = dupBuf.remaining()
complete && (remBytes > 0) && (remBytes >= (field match {
case IntField =>
xgboost/jvm-packages/xgboost4j/src/test/scala/ml/dmlc/xgboost4j/scala/rabit/RabitTrackerConnectionHandlerTest.scala view on Meta::CPAN
// ResumeReading should be seen once state transitions
connProbe.expectMsg(Tcp.ResumeReading)
val printCmd = WorkerTrackerPrint(0, 4, "0", "fragmented!")
// 4 (rank: Int) + 4 (worldSize: Int) + (4+1) (jobId: String) + (4+5) (command: String) = 22
val (partialMessage, remainder) = printCmd.encode.splitAt(22)
// make sure that the partialMessage in itself is a valid command
val partialMsgBuf = ByteBuffer.allocate(22).order(ByteOrder.nativeOrder())
partialMsgBuf.put(partialMessage.asByteBuffer)
RabitWorkerHandler.StructTrackerCommand.verify(partialMsgBuf) shouldBe true
fsm ! Tcp.Received(partialMessage)
fsm ! Tcp.Received(remainder)
trackerProbe.expectMsg(printCmd)
}
it should "handle spill-over Tcp data correctly between state transition" in {
val trackerProbe = TestProbe()
val connProbe = TestProbe()
xgboost/rabit/src/allreduce_base.h view on Meta::CPAN
public:
size_t type_size;
explicit Datatype(size_t type_size) : type_size(type_size) {}
};
}
namespace rabit {
namespace engine {
/*! \brief implementation of basic Allreduce engine */
class AllreduceBase : public IEngine {
public:
// magic number to verify server
static const int kMagic = 0xff99;
// constant one byte out of band message to indicate error happening
AllreduceBase(void);
virtual ~AllreduceBase(void) {}
// initialize the manager
virtual void Init(int argc, char* argv[]);
// shutdown the engine
virtual void Shutdown(void);
/*!
* \brief set parameters to the engine
( run in 0.583 second using v1.01-cache-2.11-cpan-13bb782fe5a )