WIP: mpi

src/opt/mpi/include/rrange.cc.h

@@ -0,0 +1,243 @@
+// -*- C++ -*-
+/**
+   
+   @file opt/mpi/include/rrange.cc.h
+   @brief RRange and RIndex declaration.
+   
+   Copyright (c) 2024 Christian Zimmermann. All rights reserved.
+   Mail: chizeta@f3l.de
+   
+**/
+
+#ifndef __cxz_mpi_rrange_cc_h__
+#define __cxz_mpi_rrange_cc_h__
+
+#include "rrange.h"
+
+namespace CNORXZ
+{
+    namespace mpi
+    {
+
+	template <class IndexI, class IndexK>
+	RIndex<IndexI,IndexK>::RIndex(const RIndex& in) :
+	    mRange(in.mRange),
+	    mI(std::make_shared<Index>(mRange->local())),
+	    mK(std::make_shared<YIndex>(mRange->geom()))
+	{
+	    *this = in.lex();
+	}
+
+	template <class IndexI, class IndexK>
+	RIndex& RIndex<IndexI,IndexK>::operator=(const RIndex& in)
+	{
+	    mRange = in.mRange;
+	    mI = std::make_shared<Index>(mRange->local());
+	    mK = std::make_shared<YIndex>(mRange->geom());
+	    *this = in.lex();
+	    return *this;
+	}
+
+	template <class IndexI, class IndexK>
+	RIndex<IndexI,IndexK>::RIndex(const RangePtr& global, SizeT lexpos = 0) :
+	    mRange(rangeCast<RangeType>(global)),
+	    mI(std::make_shared<Index>(mRange->local())),
+	    mK(std::make_shared<YIndex>(mRange->geom()))
+	{
+	    *this = lexpos;
+	}
+
+	template <class IndexI, class IndexK>
+	RIndex<IndexI,IndexK>::RIndex(const Sptr<Index>& local) :
+	{
+	    //!!!
+	}
+	    
+	template <class IndexI, class IndexK>
+	RIndex<IndexI,IndexK>& RIndex<IndexI,IndexK>::operator=(SizeT pos)
+	{
+	    // pos is the lexicographic position of the global range.
+	    // Hence, have to consider the rank geometry.
+	    if constexpr(has_static_sub<IndexI>::value or has_static_sub<IndexK>::value){
+		
+	    }
+	    else {
+
+	    }
+	    return *this;
+	}
+
+	template <class IndexI, class IndexK>
+	RIndex<IndexI,IndexK>& RIndex<IndexI,IndexK>::operator++()
+	{
+	    
+	    return *this;
+	}
+
+	template <class IndexI, class IndexK>
+	RIndex<IndexI,IndexK>& RIndex<IndexI,IndexK>::operator--()
+	{
+
+	    return *this;
+	}
+
+	template <class IndexI, class IndexK>
+	RIndex<IndexI,IndexK> RIndex<IndexI,IndexK>::operator+(Int n) const
+	{
+
+	}
+
+	template <class IndexI, class IndexK>
+	RIndex<IndexI,IndexK> RIndex<IndexI,IndexK>::operator-(Int n) const
+	{
+
+	}
+
+	template <class IndexI, class IndexK>
+	SizeT RIndex<IndexI,IndexK>::operator-(const RIndex& i) const
+	{
+
+	}
+
+	template <class IndexI, class IndexK>
+	RIndex<IndexI,IndexK>& RIndex<IndexI,IndexK>::operator+=(Int n)
+	{
+
+	    return *this;
+	}
+
+	template <class IndexI, class IndexK>
+	RIndex<IndexI,IndexK>& RIndex<IndexI,IndexK>::operator-=(Int n)
+	{
+
+	    return *this;
+	}
+
+	template <class IndexI, class IndexK>
+	SizeT RIndex<IndexI,IndexK>::lex() const
+	{
+
+	}
+
+	template <class IndexI, class IndexK>
+	constexpr RIndex<IndexI,IndexK>::decltype(auto) pmax() const
+	{
+
+	}
+	    
+
+	template <class IndexI, class IndexK>
+	constexpr RIndex<IndexI,IndexK>::decltype(auto) lmax() const
+	{
+
+	}
+
+	template <class IndexI, class IndexK>
+	IndexId<0> RIndex<IndexI,IndexK>::id() const
+	{
+
+	}
+
+	template <class IndexI, class IndexK>
+	MetaType RIndex<IndexI,IndexK>::operator*() const
+	{
+
+	}
+	
+	template <class IndexI, class IndexK>
+	constexpr SizeT RIndex<IndexI,IndexK>::dim() const
+	{
+
+	}
+
+	template <class IndexI, class IndexK>
+	Sptr<RangeType> RIndex<IndexI,IndexK>::range() const
+	{
+
+	}
+
+	template <class IndexI, class IndexK>
+	template <SizeT I>
+	decltype(auto) RIndex<IndexI,IndexK>::stepSize(const IndexId<I>& id) const
+	{
+
+	}
+
+	template <class IndexI, class IndexK>
+	String RIndex<IndexI,IndexK>::stringMeta() const
+	{
+
+	}
+
+	template <class IndexI, class IndexK>
+	MetaType RIndex<IndexI,IndexK>::meta() const
+	{
+
+	}
+
+	template <class IndexI, class IndexK>
+	RIndex<IndexI,IndexK>& RIndex<IndexI,IndexK>::at(const MetaType& metaPos)
+	{
+
+	}
+
+	template <class IndexI, class IndexK>
+	RangePtr RIndex<IndexI,IndexK>::prange(const RIndex<IndexI,IndexK>& last) const
+	{
+
+	}
+
+	template <class IndexI, class IndexK>
+	auto RIndex<IndexI,IndexK>::deepFormat() const
+	{
+
+	}
+
+	template <class IndexI, class IndexK>
+	auto RIndex<IndexI,IndexK>::deepMax() const
+	{
+
+	}
+
+	template <class IndexI, class IndexK>
+	RIndex<IndexI,IndexK>& RIndex<IndexI,IndexK>::reformat(const Vector<SizeT>& f, const Vector<SizeT>& s)
+	{
+
+	}
+
+	template <class IndexI, class IndexK>
+	template <class Xpr, class F>
+	constexpr decltype(auto) RIndex<IndexI,IndexK>::ifor(const Xpr& xpr, F&& f) const
+	{
+
+	}
+
+	template <class IndexI, class IndexK>
+	bool RIndex<IndexI,IndexK>::formatIsTrivial() const
+	{
+
+	}
+
+	template <class IndexI, class IndexK>
+	decltype(auto) RIndex<IndexI,IndexK>::xpr(const Sptr<RIndex<IndexI,IndexK>>& _this) const
+	{
+
+	}
+
+	template <class IndexI, class IndexK>
+	int RIndex<IndexI,IndexK>::rank() const
+	{
+
+	}
+
+	template <class IndexI, class IndexK>
+	Sptr<Index> RIndex<IndexI,IndexK>::local() const
+	{
+
+	}
+	
+	
+    } // namespace mpi
+} // namespace CNORXZ
+
+#endif

src/opt/mpi/include/rrange.h

@@ -1,7 +1,7 @@
 // -*- C++ -*-
 /**
    
-   @file opt/include/rrange.h
+   @file opt/mpi/include/rrange.h
    @brief RRange and RIndex declaration.
    
    Copyright (c) 2024 Christian Zimmermann. All rights reserved.
@@ -16,22 +16,49 @@
 
 namespace CNORXZ
 {
+    namespace mpi
+    {
 
 	/** ****
 	    Specific index for RRange.
-	@tparam Index Local index type.
+	    Every call on an instance of this class has to be done on each rank.
+	    @tparam IndexI Index type used to indicate local position.
+	    @tparam IndexK Index type used to indicate the rank.
 	*/
-    template <class Index>
+	template <class IndexI, class IndexK>
-    class RIndex : public IndexInterface<RIndex<Index>,typename Index::MetaType>
+	class RIndex : public IndexInterface<RIndex<IndexI,IndexK>,typename Index::MetaType>
 	{
 	public:
-	typedef IndexInterface<RIndex<Index>,typename Index::MetaType> IB;
+	    typedef IndexInterface<RIndex<IndexI,IndexK>,typename Index::MetaType> IB;
 	    typedef typename Index::MetaType MetaType;
 	    typedef RRange<typename Index::RangeType> RangeType;
 
 	    INDEX_RANDOM_ACCESS_ITERATOR_DEFS(MetaType);
 
 	    // constructors!!!
+	    /** Default constructor. */
+	    RIndex() = default;
+
+	    /** Move constructor (default). */
+	    RIndex(RIndex&& in) = default;
+
+	    /** Move assignment (default). */
+	    RIndex& operator=(RIndex&& in) = default;
+
+	    /** Copy constructor (no default, copy local index instance). */
+	    RIndex(const RIndex& in);
+
+	    /** Copy assignment (no default, copy local index instance). */
+	    RIndex& operator=(const RIndex& in);
+
+	    /** Construct from global range and format.
+		@param global Pointer to global range; this can be a RRange or the bare range (will be converted to a RRange).
+		@param lexpos Start position.
+	     */
+	    RIndex(const RangePtr& global, SizeT lexpos = 0);
+
+	    /** Construct from local index. */
+	    RIndex(const Sptr<IndexI,IndexK>& local);
 	    
 	    /** @copydoc IndexInterface::operator=(SizeT) */
 	    RIndex& operator=(SizeT pos);
@@ -92,7 +119,7 @@ namespace CNORXZ
 	    RIndex& at(const MetaType& metaPos);
 
 	    /** @copydoc IndexInterface::prange() */
-	RangePtr prange(const RIndex<Index>& last) const;
+	    RangePtr prange(const RIndex<IndexI,IndexK>& last) const;
 
 	    /** @copydoc IndexInterface::deepFormat() */
 	    auto deepFormat() const;
@@ -111,13 +138,19 @@ namespace CNORXZ
 	    bool formatIsTrivial() const;
 
 	    /** @copydoc IndexInterface::xpr() */
-	decltype(auto) xpr(const Sptr<MIndex<Indices...>>& _this) const;
+	    decltype(auto) xpr(const Sptr<RIndex<IndexI,IndexK>>& _this) const;
 
+	    /** Get the current rank. */
+	    int rank() const;
+
+	    /** Get the local index on THIS rank. */
+	    Sptr<IndexI,IndexK> local() const;
 	    //!!!
 	
 	private:
-	Sptr<RangeType> mRange;
+	    Sptr<RangeType> mRange; /**< RRange. */
-	Sptr<Index> mLocalI;
+	    Sptr<IndexI> mJ; /**< Index on the local range of the THIS rank. */
+	    Sptr<IndexK> mK; /**< Multi-index indicating the current rank. */
 	    //!!!
 	};
 
@@ -149,6 +182,9 @@ namespace CNORXZ
 	    /** Get local range. */
 	    Sptr<Range> local() const;
 
+	    /** Get range of the rank geometry. */
+	    Sptr<YRange> geom() const;
+	    
 	    /** Get meta data for given lexicographic position.
 		@param pos Lexicographic position.
 	    */
@@ -189,6 +225,8 @@ namespace CNORXZ
 	*/
 	template <class GRange>
 	RangePtr rrange(const Sptr<GRange>& global, const Sptr<YRange>& geom);
-}
+	
+    } // namespace mpi
+} // namespace CNORXZ
 
 #endif