jeffry1829

### Reason for Addition Since I'm using NPCs for players to accept quests(right click NPC will use command to open certain category of quests) It's kinda weird that quests are...

Deprecate Contracts->Contract

1

#420

add svd_truncate mindim capability

1

To solve #410

Add Scalar backend

2

Not fully tested, at least compile passed. It's important to review SProxy, since we're not using straightforward way to write into memory. Instead, we first convert memory to at::Tensor, then...

Remove Svd not accurate warning

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It's very annoying to have something like ``` # Cytnx warning occur at void cytnx::linalg_internal::cuSvd_internal_d(const boost::intrusive_ptr&, boost::intrusive_ptr&, boost::intrusive_ptr&, boost::intrusive_ptr&, const cytnx::cytnx_int64&, const cytnx::cytnx_int64&) # warning: Warning: Singular values approach zero,...

GPU Det and Directsum are ridiculously slow

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GPU Det and Directsum are ridiculously slow Det uses cusolver ?getrf Currently not sure whether this only happens to these two methods

depend on #483

fix cuTNPerm & cuGeSvd without is_U=false & attempt to fix cutt call …

4

…& add stacktrace print in cytnx_error